How do I fix a leaky faucet myself at home?

To fix a leaky faucet, first turn off the water supply valves under the sink. Then remove the faucet handle by unscrewing the decorative cap and the screw underneath it. Once the handle is off, you'll see the cartridge or stem assembly. For most leaks, the fix is replacing the worn O-rings, washers, or the entire cartridge depending on your faucet type. Take the old parts to a hardware store to find exact replacements. Reassemble everything in reverse order, turn the water back on slowly, and test for leaks. The whole job usually takes under an hour and costs just a few dollars in parts. YouTube tutorials for your specific faucet brand can be very helpful.