Thumb Score: +20

Woot! [woot.com] has Glorious Gaming Wireless Ergonomic Mouse for $24.99 – extra $5 off with code GLORIOUS (Offer expires 10/14/26 at 11:58pm CT, or while supplies last) = $19.99.
Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.