Best Buy offers the Logitech M310 Cordless Optical Mouse in Peacock Blue, model no. 910-001917, or Dark Silver, model no. 910-001675, for $9.99 with free shipping. That's tied with our March mention of a refurb (this one is new) and the lowest total price we could find by $9. This 2.4GHz wireless mouse features a nano receiver and 12-month battery life.
Also available is the Logitech G230 Circumaural Gaming Headset, model no. 981-000541, for $29.99 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $20, although we saw it for $9 less a month ago. The headphones feature a frequency range of 20Hz to 20kHz, 40mm neodymium drivers, soft earcups, washable covers, in-line sound control, and 10-foot cord.