I have been interested in Lucid Dreaming for maybe 5 years or so. I have not been very good with doing the work for it, but now that I am graduating high school I will be able to sleep later, so I'm going to try working on it some more.

Now, I've seen a lot of things like screen savers that ask you if you are dreaming and I wonder if something like this would work. If you are reminded by an outside source to do a reality check, will that still help in training you to do the check while dreaming?