On that note...
If you're enlisted, milk the military for everything it's worth. They don't pay you enough, so reap other benefits.
In addition to USMAP, there are other credentialing programs to turn your training and experience into certifications and other credentials.
Also, use DANTES and CLEP, and take some classes when you have time.
Don't get discharged empty-handed.
If you're enlisted, do USMAP. All you do is log the work that you're already doing, and you get a journeyman card afterwards, instead of NOT having a journeyman card for the same amount of work.
Just friggin' do it.
usmap.osd.mil