I bought a breastfeeding top from target, I don't remember how much it was though. Lots of normal tops can be used as breastfeeding tops, things with v-neck cross-over necklines are good because you can just pull the panels down. I found it hard to find things because I have a large bust so the bonds things and big W bras etc. don't come in my size, so when I wanted to buy actual singlets I had to fork out the big bucks. I found a website that sells $17 maternity/breastfeeding singlets at an online store but they're quite crappily made and offer literally no support so I wouldn't recommend them, basically they're just maternity singlets with clips added and ribbon holding the strap to the actual top when you undo it.