renegadetim wrote:So this is my first woot-off and am loving it.
How long do these usually last for?
Usually 2 days. Sometimes 3, rarely 1 (although as we're in day 2 already, that's moot for this one)
And, do they warn you of when they are close to ending?(or when it's on the last item)
No. Although with experience you get a sense for the kind of items they usually close on. Also, when the last item sells out, they replace it with a "normal" woot and take away the flashing lights.
Also, was it announced anywhere there would be a woot-off before it started, or are they just random?
Pretty much at random, although they sometimes give clues in the newsletter or the blog posts.