i recently took both my 35cm black birkin and 32cm BJ kelly to vegas for the wknd and i ended up using the kelly the entire time!!! it just didn't feel as bulky or heavy to use as the birkin did. whenever i use my birkin, my DH ends up having to carry it for me bc it gets too heavy. but when i'm home running errands on a daily basis, i do use my birkin a lot bc it holds A LOT!!!