I usually do a nose-plug RC immediately after getting out of bed for a WBTB, or first thing in the morning, just in case I ever get a FA. It is like second nature now so I have to put a bit of (mental) effort and thought into the check itself.
I have also got a 'spash screen' message which comes up on one of my mobile 'phones, which reads; "You are DREAMING!" when powered up.