Amazon offers its Prime members the Logitech M305 Cordless Optical Mouse
in Pink, model no. 910-001777, for $12.99
with free shipping
. (Non-members can get free shipping with orders of $25 or more; otherwise, add $8.25 for shipping.) That's $2 under our May mention (which required in-store pickup) and the lowest total price we could find by $15. (However, we saw a 2-pack for $20 shipped, or $10 per mouse, last week — since expired.) This 2.4GHz wireless mouse features a nano-receiver, 1,000 dpi tracking, and more.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.