By Lindsay Sakraida, dealnews Features Director With the travel obligations of the holiday season now long gone in our rear-view mirror, many people are setting their sights on relaxing (and possible family-free) vacations. But few things can spoil your trip more than unexpected fees. According to TravelNerd though, airlines have changed a staggering 52 fees since January 2012, which can make it difficult for a traveler to keep all the potential surcharges straight. Thankfully, our friends over at Kiplinger have thrown together a helpful list of ways to avoid paying airline fees. Savvy travelers might be very familiar with some of the tips, since many of us are aware of the stringent baggage restrictions that many airlines now enforce. But Kiplinger also notes that more airlines are now charging for carry-on bags as well; you should make sure to research this ahead of your trip, so you don't get slapped with a fee you can't avoid. Additionally, if you book through the airline's site directly, rather than through a third party like Orbitz, you can potentially avoid fees if you have to change your route later. Otherwise, a change could cost you up to $50 extra. For the complete list of potential airline fees, and how to avoid them, click here. And while you're at it, keep in mind that there are additional stages along your trip that could incur unexpected fees. Many resorts, for example, charge a "resort fee" that isn't included in the cost when you book. You'll be charged anywhere from $15 to $30 per night — or more — upon checking in. Some places will let you opt out if you don't want the services it may include, like Wifi or parking, but for many others it's not an optional expense. We've detailed other such fees in an earlier feature. Got all that? Then you can start planning your trip! Check out our daily travel deals or destination guides for some budget-friendly options. Photo credit: Fabulous Finds Related dealnews Features: 10 Travel Apps for Your Every Vacation Need, from Finding Flights to Food Best Travel Deals: Fly to Hawaii and Back for $358, Relax at a Mountain Resort How Travel Website Kayak Sees the Future (Literally) with Price Forecasting Follow @dealnews on Twitter for the latest roundups, price trend info, and stories. You can also sign up for an email alert for all dealnews features.