I have to share this - I followed this thread and looked into each type of bag mentioned and also did a search on here and the diaperswappers search forum under backpack and also saw that a Jeep diaperbag at WalMart (I know WM!) for $20 was really roomy. I thought the backpack style Land's End looked a little odd for me so I also went to REI as they are having a member sale with 20% off one item - I found a laptop bag called PacSafe ToteSafe 200 - originally priced for $89.95 and on sale for $35 plus a 20% discount. It looks really roomy inside and I have an extra strap at home I can place on it to make it into a sling type bag as well as a shoulder bag. I guess it pays to look around and that it does not have to be produced as a diaper bag per se!