When you're traveling, watch out for these scams!

1. Rigged baggage scales

Finding the best flight for your trip is hard work. On top of that, airports can be stressful. First stop? The ticketing counter. Here, you get your tickets and check your bags, which could be the most frustrating part.

Airlines charge an arm and a leg in baggage fees. Checked bags range between $20 to $45 and there's usually an additional average of $25 for overweight bags, and could go up to $100 in fees if your bag is that heavy (up to 100 pounds).

Those aren't easy fees to sneer at, so if your bags are over by a pound or two, the shuffle begins. Your daughter's hoodie gets transferred to your own suitcase, and your son's luggage now holds two extra pairs of shoes. But what if the problem was with the airport's scales and not your bags?

Tip within a tip: Rigged baggage scales aren't the only ways you can be scammed at the airport.

Scales age just like any other piece of technology. If not properly maintained or cared for, a scale could easily malfunction, lose accuracy and add or subtract weight as it pleases.

It's not a new problem, local media in Phoenix reported on the problem back in 2011, but with summer travel season here and in full swing, a friendly reminder couldn't hurt.

Avoiding this scam: When you arrive at the ticketing booth, make sure that the scale reads "0" before you put your luggage on it. If you are over and are still worried about the scale, demand that it is weighed on another one of the scales, which have also been zeroed out.

2. Free Wi-Fi scam

While waiting for your flight, it's tempting to use the public Wi-Fi to check your email or bank account, or even post a status update on Facebook, but you shouldn't.

The same rule applies whenever you're at your favorite coffee shop, bookstore or anywhere else free Wi-Fi is offered because you really don't know who might be spying on your online activity.

Using simple software and tools, someone sitting nearby can track what you're doing. Depending on what you're viewing online, this could give someone else access to the login information for your various accounts, including your passwords. It could also give them access to personal information, such as your social security number, address, date of birth, etc.

Avoiding this scam: The safest route is to not use public Wi-Fi for any browsing activities, no matter how small they might seem. Although it does use data from your monthly allowance, if you need to use your smartphone or tablet at the airport, it's best to connect through 4G or LTE.

You can take things even further by putting your phone into Airplane Mode even before you've reached the airport. But, if you must browse using a free public Wi-Fi network, we recommend that you use a VPN to encrypt your data.

3. VISA application scam

Different countries have different rules for entrance. Some require visitors to have a visa before entering their country.

A visa is normally a stamp or sticker placed inside your passport that authorizes you to be in certain countries.

Many nations only require a valid passport to visit. Others, like India for example, require a valid passport AND a valid visa to enter and exit for any purpose.

Bonus tip:

Some people might feel that they need help applying for one of these visas. There are companies, that for a relatively high fee, offer to help speed up this process.

Warning: this is a scam!

These companies do not have special tricks to expedite the visa application process. You need to go through the proper channels.

Avoiding this scam: The safest way to get a visa is to go through your destination country's consulate. You should be able to find visa application forms online. Print them, fill them out and either mail them or hand deliver them to the nation's local consulate.

Once the documents are processed, you will be sent a visa in the mail that attaches to your passport. This can take up to two months, so make sure that you plan well ahead.

If you do need help acquiring a visa, ask your travel agent. They will be able to assist you with this.

4. Passport application services scam

If you are heading out of the country and don't already have a passport, you will probably have to do an online search for an application. This could bring you to a number of sites offering their help in speeding up the process. They claim that you will receive your passport faster if you pay them a fee.

The reality is, this is a type of passport scam.

The U.S. State Department already offers these services for either a lower fee or none at all. In fact, the U.S. government has warned travelers about using one of these so-called passport expediting or courier services.

Avoiding this scam: According to the State Department, here are a few things you should know about courier companies:

You're much better off applying for a passport on your own.

Here, you can begin filling out your application online, find out where to apply in person, and check on your application status. You can also find out how to apply for an expedited passport in the case of a life or death emergency.

5. Third-party site hotel booking scam

Now that we're living in a digital world, it's super easy to get things done from the comfort of your own home. We no longer have to go to a travel agency to plan the next family vacation.

Everything we need is available online. You can book your own flights, hotels and rental cars with a few clicks of the mouse.

There is one thing in particular that you need to be aware of, though. Third-party hotel booking company scams.

We're not talking about online travel agencies like Expedia, Kayak or Orbitz. Those are reputable companies that aggregate their inventory directly from the actual hotels so you can select the right one for you.

Some of these third-party sites try to mimic what the official hotels' websites look like. The victim thinks they are booking and paying for a room directly with the hotel when in reality they are being ripped off.

Tip within a tip: Think you're a savvy tourist that can't be scammed? Think again.

Many times, these fake sites pop-up as paid ads when you do a search for hotels online. Do NOT click on them!

If you end up booking a hotel through one of these fake sites, here are some scenarios that could happen:

Avoiding this scam: Your best bet is to go through one of the trusted online travel agencies or search for a specific hotel online.

Never click on what looks like a paid ad booking site. Also, beware of links to websites. Many fake sites will use the name of a hotel in its link to make it appear official. For example, it will have the hotel name with 'reservation-desk' or something similar added to it.

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