Staples offers the Post-it Notes Treasure Chest Value Pack for $49.99 with free shipping. That's the lowest total price we could find by $150. This pack contains 10 lbs. of assorted Post-it notes in a variety of colors and sizes.
Staples offers the Scotch Magic Tape 20-Roll Pack, model no. 810K20, for $18.63. Plus, Staples Rewards members bag free shipping. (Not a member? It's free to sign up.) That's $0.93/roll and the lowest total price we could find by $6. Each roll of tape measures 3/4" wide x 27.7 yards long.