ditto on all thatI generally Garage Shop just outside of town in the older homes. If i see a lot of baby stuff and toys I drive by. I am sure I miss some deals. But what i like are the old clean outs or last day of an estate sale where the Garage stuff goes cheap.
I only spend my small change. If it is vintage tool or item that will work post technology, then I am all over it.
I have also bought some dirt cheap rusted yard tools-hoes, shovels, hammers, picks, awls, saws and hardware and stashed them out of the way on family property throughout the county. Makes for a cleaner bug out and prep if I end up there.
Try looking in a local ad trader type magazine (we have lots around here so I'd assume they are popular elsewhere too). These are the weeklies where you call in and place your ad for free and the magazine is like a buck at pretty much any gas station or mini mart. Most times they will have a small list of the type items they are selling. We use a GPS to find them thru the address in the ad. The key is to get there early.I've never found anything good at a garage sale. Then again I live in a big city where people don't need useful items in order to make their living. So most of the sales are full of used up useless junk.