Most of my workmates are always at least 10-15 minutes late because of "bus problems" and "train delays". I'm always early, because my ride is nearly 100% predictable and never takes more than 45 minutes, even if I get a flat, which happens like once a year, if even. I'm also healthier and have more energy in the morning, I get up early because most of the time I look forward to the ride and because I sleep well (despite some anxiety issues, but cycling helps with that too). I don't need caffeine. When I get to work, usually before 8:30, I'm 100% functional. By 9:00 I'm relaxed, rested and ready while everybody is else is pretty much a zombie until 10AM.

Oh, and those who drive? Forget it...