One of several variations and perhaps what the most extraordinary Badger was specifically referencing:
I have used the predecessor to the Smart Alec every day for a year. I have the vertical freudian slip and a cache for my 13"mac book pro. I use the brain cell if I am carrying just the mac book on its own. I am just about to add a side effect and a snake charmer/clear quarter for leads as well and some pouches for ear phones.. With this set up you will easily fit laptop, all leads, umbrella, water bottle, ipad, iphone, blackberry, pens, wallets, pouches, sunglasses, business cards, 2 a4 note books, 2 magazines, kindle, waterproof jacket and some. (I will try and post a picture) If I must carry laptop and mac book. laptop is in the smart alec and mac book is in its own brain cell separately, however they can both fit in but it would just be too heavy for me.