Carrying your computer in your hand can be cumbersome, use a computer bag instead. The black colour looks quite neat.
From Amazon
Mobilis Unisex's Sacoche Sac à bandoulière Pour ordinateur Portable/tablette 11-14'' -Noir The One Basic Toploading Bag, Black
OnBuy
Mobilis 003044 notebook case 35.6 cm (14") Briefcase Black