Yes, the complexity sucks, agreed. I especially dislike having to track things like sick time and floating holidays separately. I've seen some companies which do a generic "flex time" that encompasses all types of days off, which has advantages and disadvantages of its own.

On the good side, my current company's vacation time carries over from previous years (albeit with a 15-day cap), in contrast with my prior employer's use-it-or-lose-it policy.

Anyway, it's all I've got to work with at the moment.