If you don't mind paying a bit more than garage sale prices, check out Half Price Books. Picked up some nice discs a few weeks ago at their Roseville store, and yesterday stopped at their store across from the Crystal shopping center. Came away with:
Little Feat..."Down on The Farm"
Hall & Oates..."War Babies"
Donald Fagen..."The Nightfly" (definite upgrade in both sleeve & disc from my present copy)
Eurythmics..."Touch"
Bob James..."Lucky Seven"
Fleetwood Mac..."Mystery to Me"
All in at least VG+ condition and all $2.98 ea.
I juuuuust about snagged an extremely nice ABC "Aja" for $4.98...but didn't want to bust my $20 budget. Should've grabbed it anyway...sleeve was mint and the disc looked unmarked...even nicer than my original ABC. There were a number of others I passed on as well. Next trip.

Had a day off amd my wife said she was taking me to a place I would like. She took us to the the original Half Price Books and Records store in Dallas. They had a wonderful selection of records. The stores as a rule around here have one dollar records, that over time never sold, so they get marked down. Fun place to visit.