Rae, it sounds like you understand handbag proportion, which I do not. What are the criteria? According to The Lucky Guide to something or other, a petite gal can carry big bag, although a tall gal can't always pull off a tiny bag. Is that what you mean? Or proportion related to the outfit somehow?
My current bag is medium-sized. I don't believe in carrying a giant bag just for the celeb look. But I can't get away with nothing, since I carry a lot of snacks and business cards and other garbage.
I'd love to understand this before I commit to something!