Do you have photos stuck on a camera or other device that you don’t know how to get copied? Take the device and any leads/manuals you have to the local photo shop – they can help you. I hear a lot of people sadly wishing they’d got photos off their phone before it crashed or it was lost. Getting photos copied to a CD is a cheap way to save those memories.
Losing your mobile phone is no great problem. Losing your mobile phone that was the only place you had all your important phone numbers can really ruin your week. If you don't know how to back it up yourself, take your phone to the place you bought it and ask them to back if up for you. Or just take a piece of paper and write down the numbers you know you don't have elsewhere. This is something you can do on the train or bus, or waiting for the kettle to boil.