I rented the tiniest room known to man in a house rented by some of my friends who were already living out of the dorms. Seriously, it should have been a closet. My twin bed was just able to squeeze in between 3 of the walls, my other stuff in boxes stacked high against the fourth wall. I didn't have any room to walk, only enough room to open and close the door. After about a week or two, there was no hot water in the house and it was filthy (my housemates were all guys)—but I was on my own.
I didn't have a car, but it was the mid-90's, which meant that I rollerbladed everywhere. I lived in East Lansing, but worked in Okemos, which was about a 3 mile treck. I had pretty much the same meal every day: a sleeve of saltines, a tin of tuna fish, and an orange. Once a week I'd walk to Subway and order a Subway Club with light mayo and salt and pepper. And every once in a while I'd treat myself by popping in to Baskin-Robbins and ordering a double-scoop of Baseball Nut Ice Cream. Only that, never anything else.