Staples offers the Staples Paper Hot Cups and Lids 50-Pack for $3.99. Opt for in-store pickup to dodge the $9.95 shipping charge. That's $2 off and the lowest price we could find. Each cup holds 12 oz. Deal ends July 22.
Staples offers the Post-It 1/2" Flags 140-Pack for $3.49. To drop the price to $3.32, opt for in-store pickup. (Alternatively, you can add it to your cart via Auto Restock to drop the price to $3.32 and receive free shipping.) That's the lowest price we could find by $2. Each flag measures .5" x 1.7". Deal ends June 24.
Amazon offers the Sharpie Accent Retractable Highlighter in FluorescentYellow for $6.83. Checkout via Subscribe & Save and bag free shipping. (Staples offers them for a few cents more with store pickup). That's the lowest price we could find by $10. They feature a chisel tip.
Note: Be sure to cancel Subscribe & Save after your item ships to avoid being billed for future shipments.