Unfortunately, yesterday, when I was looking at the PST, I didn't bother to see how much it can hold. (Like putting my wallet and etc. in it to see what fits) Do you guys find that it is small yet roomy? I carry a checkbook (that's fairly thick), Coach medium wristlet, and a LV medium agenda. Would this all fit comfortably inside without making it seem tooo stuffed/bulky? TIA.