Tip of the helmet to FatBoy.
The U.S. Department of Transportation – National Highway Traffic Safety Administration produced this Bicycle Safety Tips for Adults video.
It’s a fairly common sense video – but if you’re just getting started commuting, it might be worth 7 minutes of your time. Included is a quick run through the ABC Quick Check
A = Air
B = Brakes
C = Cranks, Chain & Cassettes
Quick = Quick Releases
Check to make sure there is nothing else loose on your bike.