just be sure to make multiple back-ups of your wallets, preferably in multiple forms of media (e.g. paper wallet AND flash drive), and store them in *different* places. you wouldn't want all your back-ups in your house, and then your house burns down and..... poof. no more bitcoins for you.
Are you saying that I can make a digital backup (.wallet file) AND and physical backup (paper wallet) of the same wallet?? If so, how do you do it?
Atm I'm inclined to make a multibit wallet, back up the wallet.dat file and the private keys to multiple USB-Sticks/SD-Cards and also send them my two best friends ...
I don't really wanna use a paper wallet only, as I'm afraid that I'd lose them