|If you sew lots of different fabrics, you may end up with high- or low-pile fuzzy fabrics that leave nasty fluffy buildup inside the workings of your sewing machine.
Leave this stuff long enough, and it'll choke your baby (aka your sewing machine)!
If you do end up with a clump of fluff, just grab that office duster can of air! Make sure the red tube is securely fastened on the end and hold the can upright. The liquid inside may damage new-fangled sensitive computer parts.
Open up the little trap doors on the machine and spray in short bursts, careful not to hold the trigger down too long on the air can. A few shots, and it's as good as new! If you end up with clumps that won't come out and your machine brush is too short or too stiff to grab them, use a long-handled soft paintbrush to wipe them away.
Regular maintenance and cleaning of your machine saves a lot of $$$ in the long run!