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If you don’t want to use a beer can, you can use household tinfoil to create the same effect.

Because home Wi-Fi speeds are (slightly) dependent on how many people are using it at one time, a strong password is key: It will ensure that only authorized people are using your network. Take advantage of the security already built into your router and select a password (or better yet, a passphrase) that is a hard-to-figure-out combination of letters, numbers, and symbols.

If too many people on your home network are using heavy bandwidth at the same time, like playing online video games, watching Netflix, and downloading movies and music from iTunes, then your entire network will slow down for everyone. Try to stagger heavy Internet use to make sure your home network is running fast and smooth for all users.

Most routers have a range of about 150 feet. If you live in a big house, devices and computers in rooms farthest away from your router might have a hard time connecting to your home Wi-Fi network. The easiest fix to boost the signal in those rooms is to buy a Wi-Fi repeater, which can plug into any wall outlet and will increases a signal's range and strength to the farthest parts of your home (with a corresponding decrease in internet speed for those connecting to the extender, but you can’t have everything).

If you’re feeling more ambitious (or cheap), you can turn an old router into a Wi-Fi repeater with a little bit of programming and hacking.

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