If you're burning CDs and DVDs, you probably label them right afterward, and do what I (used to) do, which is reach for a Sharpie. But I caution you, as your friend and gagdet guru: Put down the Sharpie.
The chemicals in Sharpies (and most conventional markers) can eventually damage the data on your discs. I've written on CDs and DVDs plenty of times and while I'm not sure I've tasted the downside of it yet, why take chances? You can either label with the kind of markers that are made for writing on CDs, or do what I do and write on a white file sticker, or for something prettier, the stickers in this CD Packaging Kit should do the trick.