Originally Posted by erg79

About the no need for a pannier or a rack, you may find that what feels like an easy weight to deal with of a laptop in a backpack may feel like a lot different a few miles into a ride. Unless you have a Macbook Air, in which case I'm jealous!

When I ride, my backpack just has a pair of work shoes and my clothes that I'll be changing into at work. Nothing heavy at all. But I still like putting my backpack in my pannier so I don't have that on my back while riding to the office (I've found that this also makes a big difference for how much I sweat during my ride!).