If I am putting something away for a length of time I like to give it a light coat of CLP, and then put it in the case in a folded piece of wax paper. The wax paper keeps the foam from absorbing all the oil and CLP is a pretty good at stopping rust.
Know the status of your weapon
Keep your muzzle oriented so that no one will be hurt if the firearm discharges
Keep your finger off the trigger until you have an adequate sight picture
Maintain situational awareness