Just though I'd share tonight project. I'm SURE that I'm not the first to think of this, but, it's quick and easy. Maybe it'll help someone out.

I made this in about five minutes. I just set the blade on the circular saw to a 1" depth ad made a couple of passes. I then cut the 2x4 short enough to fit in my floor jack saddle. I made the notch against the grain to keep it from splitting.
Seems to work really well. If it does break, it was free...