I'm not exactly a "touch typist", I look more like a flailing squid at the keyboard. However, after decades of computer programming, I'm a dang good flailing squid!

If I were to buy a keyboard light, I wouldn't get a USB powered one. I'd get an LED clip-on AAA powered one. They last forever on a pair of AAA's (I know, I use one clipped to my reloading press). And since it wouldn't be powered by USB, you're not tied to your laptop and can use it elsewhere. Also, it wouldn't drain your laptop battery (although LED models take negligible power in the first place).