If you go to http://olc.scouting.org/ , the BSA's Online Learning Center, you can learn some valuable stuff.
Available are the annual regulars like Youth Protection, Safe Swim Defense, and Safety Afloat, but you can learn about Troop or District Committees too. All of the trainings are excellent and worth the time!
I recently did the Venturing YPT and learned a great deal about teenagers.
Take the time, register, and take these classes at your leisure. When you are finished, you are undoubtedly certified and can print out a card to prove it.
Which makes us all a "certified card carrying _________". You fill in the blank!