A general philosophy or rule of thumb here at Unplggd: If you can avoid wires without degrading quality too much or having to sell a kidney, do it. Here's a quick and dirty guide to get everything in your home wireless - from the Internet to streaming audio - so you can spend more time worrying about the dog, rather than trying to avoid the trip hazard strung across your room.
Lifehacker recommends:
- WiFi cards on laptops, desktops, gaming consoles, everything.
- Get a wireless router
- Get a wireless bridge (it really is just a second Wi-Fi router that connects to your main Wi-Fi router wirelessly and shares the connection)
- Place the router as high as possible (no routers sitting on the ground, please)
- You can actually boost your cell phone signal with a few tools
- Wireless HDMI isn't mainstream yet, but you can still get it if you can afford it
- Wireless sound via Airport Express, Apple TV, or Audioengine W1
- Wireless printing via Poloplug or wireless bridges with USB printing support
- Wireless photos via Eye-Fi SD cards (just not for iPads)
That said, if we had to choice to wire up our house, we'd probably do it in a heartbeat. There's nothing that compares to being able to stream movies to Boxee via gigabit ethernet at 1080p without ever having to deal with lag, drops, or other weird technical issues.
[Image: everyplace courtesy of CC license]

Ercol Bar Stool
I like the slight contradiction here. I think the best way to go is with a combination of wired AND wireless.
That pic is misleading, I thought we were going to discuss how to wirelessly connect an SNES to my HDTV.
for wiresless printing an option is kind of missing... use a wireless printer.
i just added a samsung B/W wireless laser at home and I don't know how i lived so long without it. the printer is on the other side of the room now, and connection was a snap. Not only will i get 1000-2500 prints out of the kind of toner cartridge i buy, but just not having it tethered to the computer is amazing.
the only thing i have to do is walk over and turn it on first because i am not a fan of leaving electronics on all the time
Wireless can't match hardwired for consistent speed. We switched from wireless to hardwired for most of the desktop computers we own (in home office.) Also, we put an ethernet port in the living room and hardwired our Roku box, vastly improving its performance.
Yes, wireless is good for when you want to check email or surf the web on a laptop from your sofa, patio, etc. but you're subject to sporadic performance.