First you take two Crest toothpastes at 2/$7, use the $1 coupons from the May P&G (4/28 version) and pay whatever balance you have plus high tax (if you have RRs, get a filler). Out pops a $5 RR.  Rinse and repeat (with a filler – I used Kraft, which was 79¢ with in-ad coupon and pay $1.31 (Lisle tax).  ’cause this RR is rolling, baby!

thanks to poohpooh on CW