I'd like to liquidate parent's estate quickly. What should I do?

I've already tried an auction service. They came in and took most of the best furniture, then sold it for pennies and most of the stuff they took didn't sell and I had to hire a truck and go there and get it back. Antique dealers only want Sotheby's quality merchandise, and who has that? Estate liquidators charge high fees plus a percentage. One even told me he doubted what he could get from the estate would even cover his fee. Another auctioneer suggested I rent a roll-off dumpster and put everything in it. I admit I don't have high-end antiques and collectibles, but this stuff must have value to someone. I'm looking for someone that will come in and give me a price for the lot and take it away - not pick and choose and only want the "good stuff." I even tried Ebay last summer. I put some depression and carnival gl up for sale and didn't even get a nibble. I'm tired of lugging it in and out of the house to have tag sales. Any suggestions?