Don’t forget to use the handy-dandy insert checker on the right sidebar.  You enter the oldest inserts you have and it will tell you if any of the coupons are still valid.  Otherwise – TOSS CITY!  Lots of coupons expired 4/30 and, unless you do a lot of Ultra shopping (where they take expired coupons back 30 days), there’s no reason to use up precious storage space.