Home Depot offers the Fluidmaster Toilet Tank Repair Kit for $8.99. Opt for in-store pickup to dodge the $5.99 shipping fee. (True Value charges the same.) That's tied with our mention from three weeks ago and the lowest price we could find by a buck. It includes parts for replacing the fill valve and flapper.

Update: It's now out of stock at Home Depot; however, True Value still offers it for $8.99 with in-store pickup.