Ah, who can’t love a classic? We’ve all likely had a leaky toilet in our home at some point in our lives; the EPA said in most cases, this was due to an old, faulty toilet flapper. This is an inexpensive part that can be easily replaced (hey, maybe even as a do-it-yourself project for some well-versed customers).
The EPA suggests, if there is a bigger fix needed (such as a complete replacement), going for a WaterSense labeled model could save as much as 13,000 gallons of water per year. Retrofitting an entire house could save as much as $2,400, the EPA said. (Photo by Nadine Hutton /Getty Images)