tonyh: make sure your membership renews each year in september .. your vacation days will be filled back up again to 30 at the start of a new year .. but also when you renew your membership .. so you can have 60 vacation days per year

make good use of your weekend days .. you can change them to other days of the week (once in a while) .. this might save you some vacation days
(e.g. i wasnt able to move in a game last thursday .. but i knew i would be able to move on saturday .. so i changed my weekend days to thursday and friday .. that way it didnt cost me a vacation day)