On biking to work

I used to bike to work a lot. My ride to the office was a breezy 15 minutes (max 20, usually because it was hot). But then my workplace moved. All last summer I was determined to bike to work at least once a week but I never made it. The ride is a little daunting: just under an hour1, most likely at moderate speeds (20-25 km/h), which means I would need to bring a change of clothes with me. I still did that when I had the short bike ride, but in theory if I took a more leisurely pace I could probably do it in work clothes. I don't have any side bags for this so I have to carry everything in my backpack and this includes my laptop, notebooks, and would need to include a lunch. My backpack is pretty large but it doesn't fit all these things comfortably. Well...the last time I used it for biking that was the case. I have to try again. The thing is, I enjoy biking and I want to bike to work. I recently got my bike out of the storage unit but have yet to make sure it's ready for a first…