I just picked up one of these Coleman Instant Up Pantry units:
http://www.ebay.com.au/itm/COLEMAN-I...item1e8ad6893f
They are a great portable dew hutch, and have shelves and side pockets for all the gear that most of us will need (including the port bottle)

. My eye piece case fits on one of the shelves and the battery box at the bottom.
Stick a plastic storage box (on its side) on top and you have a laptop dew shield as well (I use the storage box lid as an awning over the workspace velcroed to the box). It could be a complete imaging workstation right next to your scope.