Switch to using Google Calendar from my phone, which I carry with me at all times and is almost always charged.

lakmiseiru

gcal has the advantage that it's nicely backed up for you (so no data loss if your phone crashes), plus you can get at it when you don't have your planner for some reason. you didn't state any particular reason *not* to do this, so...

jesse, trs, Sammy, kettlefish, kevinarni