I've been commuting for a year and a half. I call it "competitive commuting". I can't go slow on a bicycle... I push my limites. Started a year and a half ago with a 4k(1 way) ride in to work on a mountain bike... bumped it up to 8k(1 way) a few weeks after... back down to 4k(1 way) through the winter.
I used a backpack all winter, but it's getting beaten up... although I'm still using it.
Summer came and I bought my first ever expensive road bike and I'm hooked. Started riding 11k to work, then 15, 17, 20... then 30... Now my wife is done school so I don't have to drive her anywhere before riding... so I've started commuting from home this week. 48k(1 way). It's fricken amazing!
I'm looking to purchase a faster backpack. The Ogio no drag.
There's no way I'll let paniers cramp my speed/style... not that you can even put those on full carbon bikes anyways.
Allready dreading winter... but I plan to do no less than 8km/day, I already have a parking spot where I can drive to to bike the difference.
Cheers,
Roby!