I'm almost done with my first 2+2 blouse -- just need to figure out how to sew the buttons on. I'd like to do this by machine, and I've successfully sewn a few buttons on a scrap. When I sew by hand, I usually use a toothpick to give it some space. Should I do this with the machine, too? I just tried it and it looked sloppy. OK to do without the toothpick and just sew it flat on the fabric, or should I keep working on this? Any suggestions would be greatly appreciated. Thanks!