Could you post your rules you have set up? I might find some additions from your ideas 
I currently use a low battery condition which turns off wifi and data until the battery is charged back up to at least 11%. I have a rule for entering 3 areas (cellid) which triggers wifi and disables data, airplane mode overnight as long as screen isn't on at the time (1am till 8am) and wifi off when it disconnects but it waits 1 minute and ensures there's no current connection then toggles data on.
Any other clever stuff I can make it do?

I currently use a low battery condition which turns off wifi and data until the battery is charged back up to at least 11%. I have a rule for entering 3 areas (cellid) which triggers wifi and disables data, airplane mode overnight as long as screen isn't on at the time (1am till 8am) and wifi off when it disconnects but it waits 1 minute and ensures there's no current connection then toggles data on.
Any other clever stuff I can make it do?