Calls and Errands Only?
Consider only printing Calls and Errands context lists. You rarely need more than that away from the office.
You use paper printouts for your mobile contexts views, which can work nicely, but you must remember to print them out. Cross items off the list as you do them, and re-process them right on the page just write a new date, step, etc. Put the page in your Inbox when you return to the office, and process it during regular processing time.