Unsolicited advice...?

I (like many parents) am tired of getting advice from everyone! It is not really the advice that bothers me, it is the criticism of my parenting skills. I think I may have to strangle the next person who tells me my son needs a hat...or he needs socks on when it is BLAZING outside... or I need to do this or that. I am a young mom and I am doing a wonderful job. I just smile when people say things but it is really getting on my last nerve. What sorts of advice/comments bug you the most?