It may, and it may not.

I tried a similar thing once, about a year ago, and I think it actually impacted negatively on my attempts. The thing was that I attempted to rely on that as a form of remembering, and thus I didn't bother with any thing else. Also, after only a few days I -never- even noticed that the big sign was there. It was right there in my face whenever I woke up, whenever I went to bed, whenever I walked into my room... but I never 'saw it'.

That's just me though, so more of a personal thing.

Give yours a try though, and see how it works for you.