Encouragement

I'm going to leave this post short.  I think that we don't encourage enough.  I want to know how encouragement motivates people.  What do people think about being encouraged?  I bought a pack of blank cards.  It's back to school time.  What would happen if I were to give encouragement cards to teachers on the first week of school?  I'm going to have to let you know.  Maybe this is part 1 of part 2.