A paper planner is your task manager, calendar, and small notepad collection point, all in one handy, portable package. Planners are particularly helpful for people who are constantly on the go. A planner works well for your TRO system if you are careful in choosing it.
However, planners are only ideal for light to moderate workloads. If this doesn’t describe you but you need to see tasks on the road, consider a strong desktop/web task manager that has good smartphone support. Planners work well if you are careful in choosing them, if your workload is not too heavy, and if you follow the TRO approach.