While you’re at it: Any appliance that uses water has a shutoff valve. But when valves go untouched for years, mineral deposits can make them impossible to close. Before that happens, locate the valves for your washer, ice maker, water heater, etc., and turn the handle (clockwise, about a quarter turn) every year or so (more often if your water is very hard), and then turn it back. Here are some ten-minute maintenance tasks you didn’t know you needed.
An estimate was that in 2003, the market for home-maintenance and repair spending was up 14% from 2001 to 2003.[12] Another estimate was that the market in the United States was $126 billion and was increasing by about 4% annually.[10] American homes are aging; one estimate was that in 2007, more than half of all homes are older than 25 years.[12] And, as populations worldwide tend to become older, on average, and since increasingly elderly people will be less inclined and able to maintain their homes, it is likely that demand for handyman services will grow.[original research?][citation needed]
Risk: If your house was built 
before 1994 and still has the original plumbing fixtures, you’re using 
30 to 40 percent more water than 
a comparable new home. Because about 70 percent of the water flowing through the showerhead is hot, 
that means higher heating bills too. A basic showerhead can cost just $15 and could pay for itself in reduced water and heating costs after just one month. Calculate your 
savings at epa.gov/watersense/watersense-calculator.
The term handyman increasingly describes a paid worker, but it also includes non-paid homeowners or do-it-yourselfers. Tasks range from minor to major, from unskilled to highly skilled, and include painting, drywall repair, remodeling, minor plumbing work, minor electrical work, household carpentry, sheetrock, crown moulding, and furniture assembly (see more complete list below.) The term handyman is occasionally applied as an adjective to describe politicians or business leaders who make substantial organizational changes, such as overhauling a business structure or administrative division.[6][7]