Memory Sticks

I wrote in an earlier post, that I was looking for memory for the computer. I finally found some online that is pretty inexpensive, and I'm hoping we'll soon be back to normal where computer speed is concerned. In addition to purchasing the memory, I've been looking into memory sticks. They let you download images and documents to these cute little sticks. Since I'm not too experienced with them, I would want to make sure you can't damage them. I would hate to put all of my photo's on them, delete the photo's off of my hard drive, only to have something go wrong with my stick! Anyone else notice any problems??