Go to lord and taylor or filenes. I recently went on an extreme cheap business casual dress clothes (first office job so I don't really have to make a fashion statement). I picked up 4 khakis, 1 pair of dockers (25 bucks), 1 nautica (20 bucks), one kenneth cole (18), one lord and taylor brand (pretty cheaply made, 13 bucks). I then bought two packages of 3 pack gold toe socks @ 3 bucks each. I then got 4 shirts, one nautica simple long sleeve green shirt (17 bucks), one DKNY light blue shirt (20 bucks), one Grant Thomas (crappy brand but it looked pretty nice, 8 bucks), one calvin klein striped shirt (18 bucks). For my second summer job, that wasn't as expensive as I thought it would be for clothes.