I think I’ve mentioned this in passing before, but having just picked up some t-shirts for $2 apiece, I think it bears repeating: Don’t be afraid to walk into a different department at the store to find some deals. On What Not to Wear Stacy and Clinton are forever chiding grown women for shopping in Juniors—and well they should. If you’re an adult, please don’t dress like you’re fourteen, of course, but sometimes you can get tank tops (to wear under other things) or plain t-shirts (just check the length before you buy) for cheap in the Juniors department.
If you’re a larger woman, ditto for scooching over into Men’s. If you’re a very small woman, maybe you can even wear some stuff from Girls.
Again: This is not an invitation to dress inappropriately, just to think outside the box when it comes to a few basic items.