A couple of years back, Sam's Club had a special on a Skil oscillating "multitool" for $30 (original price was something like $80). I have used it heavily for both light construction and demolition jobs. Darn handy thing to have.
I have finally worn out the metal-cutting blade it came with.
I plan to use it a lot more this summer.
Any recommendations as to the blades I should be choosing?