There's nothing better than having a common room by the kitchens.
Not only can you sneak over and snatch some snacks, but you get to smell the heavenly aroma of each feast. Out of all the cooking, the desserts are probably the best. The smells of pear, coconut, and cake are wafting through every evening, making it hard to focus on next day's transfiguration homework.
People can say what they want about you and your housemates but they're the ones missing out on the midnight cake parties.