I was able to cash in Mypoints for a couple of Starbucks gift cards, so I've got a little breathing room now. I also cashed in some Shopkick points, which has become a favorite since they introduced points for scanning at a generous rate. My main source has been Mobee, but I have the good fortune to be in Boston, which helps me with that one, since it appears to be local to the city.
Current balance of about $57. And huge thanks to those of you who have been offering coupon codes!