I was sorting through my dream journal finding my most common dreamsigns earlier when I had this epiphany. In the MILD technique I always tell myself “the next time I’m dreaming, I will see my hands and I will realize that I am dreaming.” But since I don’t have lucids very often, perhaps I can’t really tell that I’m dreaming while its happening, dreaming being the trigger for me to realize that I’m dreaming. It seems redundent like “I will win the lottery when I win the lottery.” Wouldn’t it make more sense to say “The next time I’m at school (my common dream sign) I will realize that I’m dreaming.” This would pre-set the intention to become lucid and relate the dream sign with it instead of being so broad and out there. What do you think? Pehaps someone could be a guinea pig for a while and test this out, myself included. 
Indeed, that sounds like it would be MUCH more effective! Suggestion has NEVER worked for me, personally, but I will give it a shot and let ya know if it works for me as well. 