What is your favorite maintenance to perform? Bored and looking for productive/beneficial things to do on my bike.

I’m a student in an apartment, so I don’t have a massive garage or a wealth of tools, but I’d love to do as much as I can while I have time and interest in making my old girl run better, smoother, and longer. What are your favorite/ best jobs to do to give your bike a little TLC. (I do have a shaft drive, so if you love chain maintenance you can still tell me, but I won’t do it) via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/fs7t41/what_is_your_favorite_maintenance_to_perform/?utm_source=ifttt