Post Cocoa Pebbles and Fruity Pebbles Cereals are on sale this week at Walgreens, two for $5.00. Buy two boxes and use one $1.00/2 printable coupon. After checkout, submit your receipt for a $0.50/1 Ibotta rebate offer. This offer has a limit of two, so submit twice. The final price will be $1.50 per box!