Picked up these generic, Fred-Meyer-in-house-store-brand mini lights, it's not even Halloween. That said, I'm not even necessarily using them for Christmas, more like as a nightlight so myself and a roommate can get up without turning on other, more obnoxious lights. Next time though, I'll get red or blue for this application, maybe green.
I've always preferred these white-wire versions, especially since they don't seem as common in "non-icicle" form. They also look a lot nicer on things other than Christmas trees.
Interestingly, (and the whole reason I'm even posting these) they're rated for connecting as many as nine sets, most are rated for only three. The whole set is rated only 24 watts, pretty impressive and efficient! I have some GE sets from about 9 years ago that are rated 40.8 watts, though come to think of it they may have been 'Super Bright' versions or something.