I use to work at Kohl's, and even if people didn't have their ads, they'd say, "Oh darn, I had that 30% off flyer..." and we
had to give them the % off. Also, most Kohl's (Don't know if it's for every Kohl's) allows you to use your expired bucks as long as there is an actual balance...

Just sayin'
Earn your Kohl's cash through April 18th to the 21st. You usually can start using it the day after their big special. I think(?) It's been so long since I earned any o.o;