My best luck is at the junkyard. I recently bought a bucket of automotive tools for 20 bucks containing;
-Proto slide hammer for pulling axles
-Battery test meter with a 90 amp ammeter
-3 jaw gear puller
-Blackhawk 2 jar gear puller
-Wye puller (either 2 or 3 bolts)
-Proto body filler file (this one will adjust to curves, and had a spare file for it)
-3 forged C clamps
-2 body dollies (for straightening dents in cars, etc.)
-5 hacksaw blades
-Set of Allen wrenches
-Rethreading dies, coarse and fine, 3/4" to 1 1/4"
-Starter "bump switch", for jogging the starter when you need to crank the engine from under the hood.
-Ring compressor, Blackhawk,
-AAmco ridge reamer
AND, about 8 or 9 blacksmith tools, that fit in the (square) hardy hole of an anvil.
He threw in the 5 gallon bucket on the deal, too. I figure that the new cost of these things is in the range of $600 to $700.
On another trip to the same junkyard, I bought a sorghum mill for $130. He had no idea what the heck it was--had to tell him. I was offered $200 for it by an antique dealer before I got out of the junkyard! One sold lately on Ebay (mounted on a homemade trailer and set up to power with a tractor PTO) for $1,350.
Goodwill stores have been good to us, too. Most of our clothing comes from there, and LOTS of books for entertainment reading and some reference works--paperbacks are a buck (on sale this week, 3 for 99 cents), and most hardbacks are 2 bucks. Then, we take them to a used bookstore and swap out what we have for some we haven't read yet. Goodwill also had 12 volt fans for 2 bucks each--got 6 last year. They provided me with enough lamps and light fixtures to light our whole house for 2 bucks each. Those are now converted to use 12 volt CFL bulbs, and have cigarette lighter plugs on them for use with our solar system. AM/FM/SW radio, $1.50, and a 12 volt to 3 volt converter for it, $1. We'll use this on the 12 volt house system, too. New speakers for the computer, $4. Coffee mugs, 50 cents. Canning jars, $4/dozen (kinda high, but they were clean). New Alladin quart insulated mug, $1.
Tomorrow, we are off to Elnora, IN, for their annual antique show and 5 acre flea market that fills the county farigrounds. I bought a lard rendering kettle there last year cheap. LINK:
http://wrvaa.org/