I agree that the little battery operated computer vac is useless. It isn't strong enough to suck up anything, but...
It does come with a nice attachment for getting into the tiny areas around the bobbin.
So, I got out my duct tape....and secured the attachment to the hose of my hand held vac. That works great. And because it's a hand held vac, if I accidently vac up something important, it's not hard to find in the little lint filter. That wouldn't be fun in a regular vacuum!