Mailbox key
Pretty self explainatory really. I need it to open my mailbox which is usually empty save for bills for the last resident! WTH?! Change of Address woman!

Bedroom key
Whenever I leave the building I lock my bedroom. You can never be sure if maintenance will have to come in while you're away, so lock your stuff up! lol!

Apt. key card
If I don't bring it, I'll be locked out of the building and will be fined $35, b/c I have no roommates to let me in!

ATM card
Duh

Starbucks card
Hey! Who can resist a Strawberries & Crème Frappuccino?!

Dominicks Card
All those discounts add up. =D

Student ID
Even more discounts =D

CTA Card
To catch the train, and just why did Chicago decide to raise the fare?

Cash
To add to CTA/Student ID/Starbucks cards and to buy yummy burritos at Chipotle, groceries and whatever I may need or want.

Cell Phone
Lol, really?

Lists
If I'm going to the Dominick's. make sure I only buy groceries I need, before going crazy and searching for all the Red Tags!