I try not to do guilt either, but it's amazing how much I've learned about myspending habits in the last 15 years. I dont' need anything except groceries and clothing to replace what gets worn out. I want new clothing, shoes, purses, makeup, etc. But really all I NEED to live is a roof over my head, bills paid, food to eat and clothes to wear so I don't get arrested for public nudity. EVERYTHING else falls into the want and not a necessity category.
Besides, a clean house always does wonders for my mood and shopping doesn't. When I shop I see stuff I want and it causes me stress because I know I don't need it, shouldn't spend the money on it, etc. Besides, shopping for a lot of unnecessary stuff is what has gotten so many Americans and our economy in the situation it's in now.
I'm currently making use of the brand new state of the art fitness center at school. Just started, but I go 3 afternoons a week after class. It is a great stress reliever and it also energizes me to be able to put in even more time studying afterwards.