I bought mine like I do my purses. One big pocket that I can fit way more than I need to in. I know better than to think I'll take the time to keep it organized into several pockets. I bought mine at walmart (the next closest place is 60 miles away or I could order online).
I have a jujube and love that it can be worn as a backpack. It allows me my hands free. I like that it has a front pocket for my stuff so I don't need to carry a purse.
Re: Features of your diaper bag
I hated the floppy messenger style bag i bought when I was pregnant. I just bought the Skip Hop Studio Tote and I love it.
https://www.skiphop.com/mm5/merchant.mvc?Screen=PROD&Store_Code=SH&Category_Code=DB&Product_Code=21500
Features I was looking for:
zips closed
has the little feet on the bottom so it will stand upright on a dirty bathroom counter
lots of pockets including bottle pockets on the sides
an easy to access front pocket for my keys and cell phone
stroller straps to hang on the stroller (hated stuffing my bag into the stroller basket)
big enough but not absurdly big
Looks like a purse, i didnt want something that screamed "diaper bag"