Wow! Talk about an embarassment of riches.
Aetrex makes a whole line... well, several lines really... of products to help various foot ailments. Bunion pads, metatarsal bandages, arch supports... you name it, they've got it.
Here's just one page showing some of their products for the forefoot (the front part of the foot), and
here's a page at
Foot.com The Foot Health Network where you can buy some of them online.
They also make several lines of orthotic inserts, which could help you out in pretty much any flat or low-heeled shoe.
In particular the
Lynco line offers some 3/4 inserts that are specifically designed to fit into dress shoes, but still offer different combinations of arch support and metatarsal support.
Pretty neat if you ask me, but then again, I'm a geek about this stuff. But what's not to love? If you can buy something that costs $50 or less and makes multiple pairs of your shoes eminently more wearable... why wouldn't you?!