Have you considered secondhand items? I can get an item (shirt, pants, etc.) for about $5 each - and quite often, $3 or even less at garage sales. That would provide you with 6 new items, or 3 outfits, per month on your budget.
If it's not something you would normally consider, then check it out - a lot of people think that the clothes will be of bad quality or out of style, but I have found the opposite to be true. By the time clothes make it to the thrift store in one piece, they are usually built to last. I have had much more success there than I have with new clothes, which I usually manage to ruin or shrink within a wearing or two
