Perhaps I'm lame to suggest it... but review your budget and see how you can improve it. Do lots of research/read books on improving your overall finances just because you will be too busy to do it later on. (Cooking, retirement, investment)
Also, organize/clean your entire apartment, make an inventory list of all of your belonging including clothes, shoes, toilet paper, electronics, what is in the kitchen cupboard, freezer... everything. Using that list create meal ideas, and/or outfit ideas. So you'll know in advance when to start looking out for sales, or if you're shopping, automatically know if/how it will fit in your current wardrobe/if you really need it. Donate/sell the things you don't need, if you get robbed you'll know exactly what is missing, you will recognize mistakes from previous shopping experiences and hopefully learn from them. Also collect all of your important documents in one place (warranties, birth certificate, ss card, completed loan payments, tax returns, current loans etc) - perhaps open a safe box at the banque.
I've been doing this the last 6 months; it's a really big job; but it is very rewarding. I'm a math person and I can easily quantify the difference this has made in my life. I still have a way to go, but being clutter free feels like a weight has been lifted off my shoulders.