Radio Shack store closed near my house. Had a huge fire sale. Electric circuit components were 90% off.
My wife thought I'd gone insane when I got home with two huge bags full of LEDs, resistors, switches, IR sensors, photocells, capacitors, bridge rectifiers, a spare breadboard, a pair of helping hands, etc.
My only regret is that I didn't catch the fire sale in time to grab all their Arduinos.