What type of blasting media do people use?

I finally got my 60 gallon compressor and 36" blasting cabinet set up and operating. The first bag of abrasive I used was crushed glass because that is all they had where I bought the cabinet. It seemed to work well blasting at 100 psi cleaning rear suspension brackets, but it sure seems to disappear fast. I probably only have 1/2 as much as I did when I started, and I only blasted for maybe 2 hours max.

What do others use for blasting media? I'll only be using it for cleaning suspension parts on a home resto project. No concourse work happening here.

Cley