Hills -- is it true?

[DDH]

Susan, I think I am like you. I have gotten so accustumed to sitting while riding and spinning that it seems all wrong to stand up. I have read so many differing opinions on climbing while standing and climbing while sitting that I don't know what is correct so you get to where you do what your use to and comfortable with. I almost never stand while riding. Talking to the LBS guy today, he is telling me to build my endourance up, to do intervals of standing pumping hard and then sitting and letting the heart rate slow, then stand, then sit.

What is a girl to do? I tell ya though, eventually I will have enough knowledge in my head and enough riding time under my belt that, next thing you know I will have my own training way down and know enough just to be dangerous.
Main thing is, I enjoy riding, and want to continue until I eventually get better.