Always have the cards ready
I keep a deck of playing cards in my workshop for making micro adjustments when I’m using a sacrificial fence on my table saw. For example, if I cut a dado that comes out slightly too narrow, I just stick a card or two between the rip fence and sacrificial fence and make another cut. The rule I follow is that one playing card = 1/64-in. – Les Beekman
Find more table saw tips and techniques here.