I was wondering if you all tend to reread works as a routine/ritual and why.
I, almost yearly, reread Ebisu-san and Hotei-san and Twin Cake, I simply love the characters and the steady build-up of their relationship in both series. Another one is Girl Friends, my "introduction" to the genre; I still remember waiting for each chapter to be scanlated, though back then I didn't actively seek yuri works. The one that properly introduced me to the genre, and actually helped me find this site, is Delivery, it's what comes to my mind when trying to define the genre.
Finally, this one is a bit strange, whenever I'm away from home, for whatever reason I always end up thinking about Renai Manga and reading at least a couple chapters.
What about you all, anything you simply have to read again every now and then?