Earlier quoted context omitted.
A backpack solves all of those issues. None of that is necessarily very large. As for the shower, some work places have showers. Depending on how much you work out and what the climate is like you may or may not be a heavy sweater after a ride to work. People who work out often tend to sweat more because their bodies adapt to their routines and start to sweat at the slightest hint of physical exercise. People who don…
I used to cycle with a backpack, and it would always make my back sweaty, no matter the weather or the exertion I put into my ride. Then a couple of years ago I went on a bike tour, so I upgraded my bike and got some actual panniers to store stuff. The change was amazing! Not only can you carry more, but you also avoid the strain and sweatiness of having a backpack.
yes also to OP on the "bicycling to work wakes me up super well" - i did in a northern US city for 6 years, and the icy/cold months when i had to rely on transit instead were remarkably more challenging, especially the mornings, even if i kept up other indoor exercise.