Yep the usual's here too-
Pins and needles in mouth, even though the pin cushion is right next to me.
Not closing the rotary blade, nor replacing blade often enough.
Not replacing machine needles or cleaning out lint as often as I should.
Also-
I kept forgetting to set my needle position to center so when I turned on my machine it went to the left. (fixed it now though) I've got a nice little dent in my 1/4" foot where the needle kept hitting, and I've probably put my machine out of whack because my needle threader doesn't work anymore
And most embarrassing-
I've been sewing since I was at school and I'm yet to learn that if I want the machine to stop I have to take my foot off the pedal. Yelling 'stop' doesn't work
(Lucky I don't drive a car like that!)