This has been a focus of a local tv channel and they are pointing out all sorts of things people don't think about ....

1) donating computers, REFORMAT the hard drive to ensure all data is fully removed, simply deleting all your files leaves bits and bytes behind. They tested several computers donated to Salvation Army and found TONS of info about the previous ownerS ..... yes, OWNERS... not just the most recent owner of the computer.

2) demand that retailers look at your signature when you sign a receipt and compare it to your receipt. It's a few moments of inconvenience, but it reminds them to do their job. And if you are like me and your signature strip is worn off the back of your debit card, hand them your photo ID with the receipt. (I actually get asked for ID about 60% of the time I use the card at a non pin-pad)