I also use a paper gripe log that stays in the coach that I use to record maintenance, repairs and events as they occur. From time to time (I have a calendar event set to remind me) I'll transfer the written notes to electronic format. The electronic log also has triggers, such as dates or miles, when preventative maintenance is needed.
Marking or tagging the items sounds like a good idea but I really need a bit more to help remind me that I need to do something and the calendar event to update the logs solves that problem.