Thumb Score: +17

Amazon.com has Post-it Super Sticky Notes, 6 x 4 in, Neon Fizz, 8 Pads, 45 Sheets/Pad | School Supplies and Office Supplies, 2X the Sticking Power for $4.88.
Shipping is free with Prime or on $35+ orders.

Walmart.com [walmart.com] also has Post-it® Super Sticky Notes, 6 in x 4 in, Energy Boost Collection, 8 Pads/Pack, 45 Sheets/Pad for $4.88.
Shipping is free w/ Walmart+ or on orders of $35+.