You know hunny, i have witnessed this sort of antsyness in so many late pregnancy women i have begun to think of it as the pre-labour transition. :)
It is as you say, everything is ready, but where is the baby!? I knew i would go over with DD, and my anstyness began around 40+1 (which is great in terms of how long i got through without any, but i still had 10 more days to wait...). I think it's a totally normal stage for most women. Just as transition is a normal phase of labour when you move from passivity (mentally and physically removing all barriers between where the baby is and where the baby is soon going to be) to action, moving that baby down through the newly opened gates, so there is a phase, chronic rather than acute, where one moves from "pregnant" to "labouring".
And you know what, i REALLY think it's necessary. This phase is going to give you the little extra patience a brand new baby needs, it's going to push you mentally and emotionally like a new baby can, just as the braxton hicks have been toning your uterus, this phase is sharpening your mama-bear claws, ready for the task ahead.
I know none of this helps (especially as however strongly i believe it i do think it's just something i have noticed, and who am i!?) in terms of dealing with it, but maybe from this you can take a little of the strength labour transition brings - for me i began to panic, i begged for an epidural (in my own bath at home with only XP and a friend there, so no chance! lol) and then i had a little moment of sunchine where i knew my baby was really coming soon. So try to smile a little lovely woman, your baby isn't minutes away, but she isn't months away either. These last few days stretched thin by the strain of waiting will be a salve on future days of sleeploss and stress (if there are any, which there might not be!). I really think that the slowness of the last weeks of pregnancy are what makes the first weeks of new life speed by, and i think Mother Nature knows that too, and it makes us appreciate our precious early days with our children that bit more. Long hugs to you, and good labouring thoughts.
In practical terms my answer to the issue was to knit my baby a little cross-over sweater. Of course it was done before the baby was, but i'd just finished blocking and sewing it the night before labour, so maybe it's time to pick a little project or write yourself a big list of stuff you must do, and get stuck in while you wait.
Lots of love
Bec