Gov auctions can pay off that's for sure.
I have bought two over the last 8 years....both were "smalls"....not furniture.
The first was two van loads worth....one load was CASES of chainsaw files. It worked out to over 14,000 files. There were 12 files in a box and 18 boxes in a case. Quite a heavy load, but each case was easy to move.
The other items in that buy were things like Scotch tape dispensers, 3 ring binders, etc. Got the lot for $400, local pickup (10 miles one way) and made a profit of $4k....mostly because of the chainsaw files, even though were a larger diameter than needed for most consumer chainsaws.
*****
The other government lot was Wenger Swiss Army knives and a second batch of no-name utility knifes. Wengers did well at from $10 to $30 each for knives that retailed for $20 to $50 each. Small utilities....$2 to $6.
****
I check the gov auctions from time to time, so have probably missed a few good ones, but what used to start with a bid of $30 now starts at $150....you have to be sure you'll clear on one of those !