I love carrying a backpack when I shop so I can use both hands, without my purse falling off of my shoulder!  It's the perfect amount of room - not cavernous but just enough to hold a normal amount of items.  I read a review from someone that did not like the smell of the purse when it was new.  I actually love the smell of new leather - it reminds me of when I was young and got a new saddle for my pony. (Set it in the sunlight, it will go away quickly if you want it to disappear.)  There are plenty of zippered pockets for your cell phone, keys, etc.  You can use this with just one strap, then when you want it as a back pack. simply unzip the strap to get two straps.  Definately recommend!