Scott Hanselman started this "meme" a few days ago, then Nic jumped in, so why not joining and tell you my 4 life changing gadgets? They both agree on GPS, iPod and DVR being their life changing gadgets: I don't have a TV (nor a DVR), and only watch movies or a few TV series, and I use GPS only when going trekking or doing mountaineering, so I cannot say that a DVR and the GPS are among my life changing gadgets. Cellphone: a friend of mine in Italy wrote a post about why the cellphone changed his life...