There's a little hidden gem thrift shop in my tiny home town called the Attic Shop. They're only open like 3 days a week, and close very early (at 3pm). They often get overstock from all the old folks around, and have the BEST sales I have ever seen in any thrift store by FAR (and I've been to maaaany).
They were having a 75% off everything in the store. My bf got 2 full 3-piece Nordstrom suits for around $4. I got a 3-leaf table, real wood, shiny top, no scratches or wear for $10. We got a lot more things there, but I need to go back soon. Even without the 75% off sale, their prices still beat every other thrift I've found. And now that I'm in the city, thrifts here are more expensive. Our Goodwill is ridiculous, usually has beat up stuff for like $2 under it's price for a brand new one.