Hi I congrats on picking up a dk3 I have been using my shop vac with the brush attachment and gettin all the junk out of mine. I also picked up a mini brush kit for my shop vac to get in the hard to reach places works out pretty good. Then after that I wipe it down with some simple green and a rag.
That brush attachment to the shop vac is no joke. I recently started using mine and I'm in love with the thing. Scrub that dust off and the vacuum eats it up like it was never there. I use it for everything now.