Staples offers the Post-it Notes Treasure Chest Value Pack for $49.99 with free shipping. That's tied with our June mention as the lowest total price we've seen. (It's the best deal today by $169.) This pack contains 10 lbs. of assorted Post-it notes in a variety of colors and sizes and comes in a reusable treasure chest.
Available for pickup only and with stock varying by ZIP code, Staples offers the Post-It 25x30" Grid Meeting Chart 4-Pack in White, model no. 560SS, for $35.39. That's the lowest price we could find by $37. Each pad includes 30 sheets.
Staples offers the Westcott 12" Wood Ruler, model no. 05011/55280, for 25 cents. (Amazon offers it for the same price with free shipping for Prime members.) Opt for in-store pickup to avoid the $9.95 shipping charge. That's the lowest price we could find by $2. It features a beveled edge. Deal ends September 16.