New Year's Resolution #1: RC Upkeep

The first resolution in my top 10 resolutions for RC enthusiasts is "to take good care of any and all RCs I currently own." I must confess that I've not been as diligent as I tell others to be. Right now I have a few RCs that could benefit from some more care and maintenance. I'm also helping a friend get his neglected RC back in running order. However, most of my non-functioning vehicles are that way due to some missing or broken parts I've not yet replaced (it happens no matter how well you care for a vehicle) rather than neglecting everyday after-run maintenance chores. Those I am good about doing. How are you at keeping up with the up-keep?