Menards 15% off everything (that fits in one of their paper shopping bags) sale is going on now. Best of all, the discount does stack on sale prices, so items like their Irwin Marples Pro chisels, which are already being clearanced out, get an additional 15% discount! It also applies to stuff that doesn't typically go on sale or has manufacturer minimum prices, like a Kreg drawer slide jig. Only one bag is allowed per purchase, but nothing prevents you from making multiple purchases!
This sale seems specifically geared toward hand tools and smaller bits of hardware as items have to be no more than twice as long as the bag is deep, so lumber is definitely out. I plan on picking up some drawer slides for a project, and even the 24" slides should count.