We do that all the time here. Last cookie, best of 3 - take the trash out, best of 3 - scoop poop, best of 3 - Where to go for dinner, best of 3. It really works! Helps settle a ton of arguments with the kids too! It also gets everyone back into a good mood.
Be strong and courageous, and do the work. Don't be afraid or discouraged by the size of the task, for the Lord God, my God, is with you. He will not fail you or forsake you.