Go dumpster diving...I've found some really cool stuff and if it's banged up a bit, I just paint it.
The best stuff to get are tables, chairs, chests, and bed frames — in solid wood or metal and in fairly good condition. Even if they're rusty or have layers of flaky paint, they're easier to DIY refinish with just some sanding and a new coat of paint.
Avoid particleboard and laminate furniture. It's not very durable and nearly impossible to refinish. Also avoid upholstered furniture from the roadside like sofas because it's a good way to accidentally bring pests (fleas, bedbugs, rodents) into your home.
From Redoux Interiors.