Well, two hotel rooms.
I went on a snowboarding trip in Febuary with my boyfriend and his friends. I don't actually like snowboarding, so I spent my time in other ways (reading, relaxing, working out, visiting a friend that lived nearby).
One of the ways we saved money was by bringing a bread maker and crock pot. We drove, if you had to pay to check a suitcase it probably wouldn't be worth it! I bought some unfrugal crock pot liners (with a coupon, so they were 4 for a dollar), which prevented any sort of assholish clogging of hotel sink drains. I was careful not to leave extra mess for the hotel staff, and as a thank-you for letting me clutter up the rooms, I left the house keeper a loaf of bread! It was mostly sandwiches for lunch on the slopes, and then hot "home cooked" meals for dinner.
Some people like to go to fancy meals on vacation. And that's cool. Me? I've eaten food from grocery stores around the world, because my family is pretty frugal when we travel. We don't avoid restaurants all together (after all, it's part of the cultural experience!) but when you are in a foreign country for a week, you don't need to eat out three times a day.
Compared to my wealthy aunt and uncle, who go on a yearly ski trip that involves nightly meals at restaurants where you are hard pressed to find meals for under $30, I think we did pretty well :)