Last night I remembered to reality check via nose-plug in my dream. I went to plug my nose, but I saw myself in bed, moving my hands, and thinking 'darn. I can't be dreaming because I'm supposed to be paralyzed.' Of course, I didn't recognize the dream sign of seeing myself in third person. Figures. xD

I've have two lucid dreams within two weeks (before I joined this site and began training). My reality check was the same both times: pressing my hand against glass, and my hand going through.