YOU'LL LOVE IT: If you've never used a micro fiber towel before you're in for a pleasant surprise. You will also realize that you will be so fond of it that you will want more I know I did.
FOR CARS' EXTERIORS: For drying cars I recommend you use two towels: one to get the big water spots and the other to finish to a streak free shine. Add some quickdetailer to your final wipe and it'll prevent streaks and waterspots. It also depends on your car's finish. I have so much wax on my car that it beads up so much that I am able to completely dry my car with one MT by frequently wringing the towel. On my sister's car (which is 5 years old), when I used an MT on her front windshield she had thought I used Rain-x because when it rained the water beaded from the towel buffing. I never new this (because my window is always clean, hehe), it makes that much of a difference.
FOR CARS' INTERIORS: It works wonders for the inside or your car. If you have any dust on this inside it will pick it right up. I do this sometimes at stop lights (some people really wonder what I'm doing). It won't scratch your instrument panel screen. It will make your rearview mirror shine streak free used dry or with a little "breath". The inside widows will also remain streak free (you can sprits a little water if there is gunk or whatever). If you have any chrome or wood trim, it will polish those right up too. And best of all no lint.
PERSONAL: Some people use them for hair or bath towels. One guy said he used it backpacking in Europe as his bath towel; so small and easy to carry yet very effective. I imagine if you're a swimmer it would be handy at the pool.
AT YOUR DESK: I also keep one by my computer. I invested so much money on that thing that I wipe it and the screen down constantly. I save one side for the screen and the other for all the plastic parts. It works well. You can also use it on your reading glasses, CD ROMs, and anything else that's glass or plastic that needs dusting or polishing with out scratching.
HOUSEWORK: Of course you can use it for housework like dusting, mirrors, dishes, spills, carpet spills, and windows. You can attach it to a cloth holder like those "disposable dusting cloths" that are weak and dust floors and other flat surfaces. There are so many uses around the house.
This is truly a special and unique product, it is recommended you save it for finishing work and save the initial dirty work for cheaper products.
GIFTS: I have give them to some of my friends to try out. Many people like to take care of their cars. They make great stocking stuffers (put in a plastic bag first)
Keep in mind that microfiber varies from seller to sell, there is a big difference in a good quality towel compared to a "cheap" one. Many may settle but some of the swirls on the faceplate of my sony HU came from cheaper towels. I no longer make that mistake.
HTH - Steve