I have a habit when I get into some great music of just letting my fingers fly. It is a bad habit and one, of the many, that all my instructors have suggested I work on. And it doesn’t matter whether I’m on clarinet or sax. The other bad habits include intonation challenges (too many horns to memorized their quirks), alternate fingerings, learning my scales, and keeping my foot from tapping. So this stuff touted by Pete Thomas still looks like a good quick fix to me:

I’ve heard of people taping their fingers to the sax keys to work on this bad habit, but I haven’t tried that either. :o)