QOTD: What Gadgets Can't You Live Without?

Tell us what is essential to your living.

Our computers do so much for us. They entertain us by playing games, movies, music and other multimedia. They let us keep in touch with friends and annoy others with social networks. Many of us even earn our living thanks to computers. We know that you can't live without your computer(s). We can't either, but now we've come to depend on many other devices to get us through the day.

What we want to know from you is what other electronic devices and gadgets you can't live without, besides the computer.

We're expecting most of you to answer with your mobile phones, as convergence has made the simple calling device into so much more (including your alarm clock), but we're hoping that you can surprise us with the unexpected. Mind you, it doesn't have to be high-tech stuff. For example, I can no longer do without my specialty coffee maker that brews a single cappuccino from a little pod, nor can I fly on an airplane without my noise canceling headphones.

For our QOTD, tell us what sort of gadgets that you simply can't live without.