I’m a student, and i pay for the campus gym even though i don’t work out. I shower there though, since i’ve already paid for the hot water! City pools also have public swim times where i can get a free shower.
College campuses are full of people who don’t plan beyond the next exam. At the end of every semester, there are people who need to move away, but can’t take their furniture, so will give it away.
Also, volunteering at soup kitchens gets me a free lunch – that i’ve worked for.