One thing about using a vacuum cleaner, particularly one with a rotating brush roller, if the thread gets wrapped around the roller, it can bring the roller to a complete stop and damage/ruin the motor. I always sweep up the thread (as much as I possibly can) before I use the vacuum cleaner -- and I try not to use the brush roller to sweep up thread and raveling from the fabric. Vacuum cleaners are expensive to buy, very expensive to repair, and a lot of damage like the excess threads are just waiting to cause a problem. So, this tip is a very good one, indeed!