I have unearthed a $10 Credit Club card from All Books Considered with four punches on it. This is one of those used book stores with books stacked behind books and boxes stacked in front of shelves. Every trip feels like a treasure hunt and while some of his prices are a tad optimistic I have always managed to find bargains to offset those. It's on Montgomery, right around the corner from Kensington Used Books on Howard, a store that's more comfortable for the claustrophobic and is in fact downright cozy. And in between these two book stores is Osiris, which is an antique store that sometimes has an interesting book or two on a shelf.
Long story short: if you could use 4 punches (out of 10) toward a $10 credit at All Books Considered, let me know and I will send it to you.