If you play Ingress, I highly recommend also installing the Integrated Timer for Ingress (Android.) The default timers are helpful when farming, but I primarily use a custom 1440 minute timer to make sure I don’t lose track of my Sojourner badge.
Tap on “24:00” at my last hack of a session, and I get a nice Ingress-themed timer. Day-to-day I have enough portals around me that I usually get a hack in the morning and evening without even thinking about it. But when I was on the road for WordCamp Dayton, I actually got down to less than an hour on my Sojourner time. This timer saved my weeks of progress.
Big thanks to EpicGeek, a local level 16 who shared this tip with me originally.