Ever vacuum out your bobbin case and under your threadplate? All you need is your vacuum hose, a plastic lid and a drinking straw.
Take a plastic lid larger than the hose of your vacuum and slit an x in the center, but not too large because you want the straw to fit snug. Unscrew the foot plate. Turn on the vacuum and place the plastic lid over the hose - the suction holds it on. Insert the drinking straw into the slit of the plastic cap and hold on to it! Place the open end of the straw into your shuttle case and vacuum! You can smoosh it flat and vacuum the area gently, even getting up around where you put your needle in. Works great!