I went into Old Navy yesterday and they were having a sale where you can take an extra 50% off clearance items. I found several shirts for work for around 5 dollars each! I would call before going, just to be sure it's going on in your area.
they are doing the $1 flipflops on 5/22 they have some online now for 1.99 I dont have a store near me and dont think I would want to fight the crowds anyways LOL.. I believe the limit is 5 pairs per customer