U of M Property Disposition - All of the stuff that Michigan is finished using has to be sold off and this is where they do it. They have wacky hours and a lot of weird stuff (anyone ever wanted 15 dentist chairs?) but if you need something for not much cash, check it out.
Treasure Mart A consignment store where prices are reduced 10% each month for items that collect dust.
Opportunities for local Auctions are limited compared to the regional average, but present. There seems to be a long-standing void of farm, estate and other auction activity in Ann Arbor proper, and more focus on estate tag sales and garage sales within the city limits.