Happy belated Birthday!! 
.....interesting blog, this is the first time I came across a
blog that is delicated to something which most people had
forgottten..."Gratitude"
Agreed with what you posted, we should stop and think of the
things that we are thankful for.
My current thought is... why people always take for granted
the persons that are closest to them? Be it family, friends or
lovers.....
Thanks for the wishes! I'm not sure how to pull people to visit
such blogs. It may not be an interesting thing anyway.
About your last sentence, I think that's because we are so
comfortable with them that we forget these people do not live
forever. We never thank them for the smallest things they do, and
we even forget the things they have done for us.