Go to bag. I have this from J.Crew and not only is the monogram a classic touch, the bag is made of the softest leather. It is the perfect tote bag to store everything from a wallet and keys to your laptop.
Madewell 'The Transport' Leather Tote at Nordstrom.com. An all-purpose tote fashioned from sleek genuine leather boasts a voluminous storage compartment and sturdy straps that rest comfortably on your shoulder. This style is available in inky black or rugged brown and may be monogrammed for a personal finishing touch.