This is a simple tip...but one I did not know for many years. When you start sewing at the beginning of a seam, hold the two thread tails down gently with your left hand until you have a few stitches completed. This will anchor the threads which could otherwise get pulled into the bobbin area and create a "bird's nest" on the underside of your fabric. Not fun. I did it many times before I realized how easy it was to avoid. Try it if you don't already....and see what you think.
In the above photo I am working on my "block of the month" quilt block. It is due this Friday....I always seem to wait until the last minute. Fortunately they generally go together pretty quickly. I'll post a picture when it is finished. Is anyone else sewing today? What are you working on????