A partial list of my thrift store finds:
9 pairs of convertible pants (6 for myself, 3 for my sons) including 3 pairs of Columbia, 2 pairs of Ex-Officio. All in "like new" condition. Prices from $2 to $7
Several long and short sleeve athletic shirts
1 pair crocs
1 Stainless Klean Kanteen (for my truck and car camping)
3 fleece jackets (2-Columbia, 1- REI)
Various fleece caps and gloves
1 Spotting Scope
1 set ski poles. My 11 yr old broke his trekking poles on the JMT. We did 2 rest days in Mammoth and the cheapest set of trekking poles in town was about $50. We wandered into the thrift store there and found a light set of Scott aluminum ski poles his size for $10. Plus, he wasn't going to be able to break these. He still uses them almost daily in the local mountains.
1 Two liter Platypus (25 cents, found it when I wandered into a thrift store while on vacation in Colville, Washington).
1 three cup aluminum pot with handle, weighs 1.8 oz (after I cut the handle to about 3"), 2.1 oz with MYOG lid. Its now my standard pot when I want more than just a mug.
1 Pot cozy. It was an thin neoprene sleeve for a thermos type bottle, perfectly fit a small IMUSA aluminum mug.
I could keep going, these are just some of my better deals found. I check the local thrift stores about once a week. Unfortunately, the larger thrift store chains like Goodwill and Salvation Army are getting expensive, not much cheaper than new on some things I've found and often twice the price of the same things at other local thrift stores. They do good work and I support them for that, I just wish they'd keep their prices a bit lower.