I always get a little depressed when I look down that LONG list and see things on there from YEARS ago and think, "Well, that was a good idea but it's clearly never going to get done", so I just delete it permanently instead of strike-out.
I move stale items to a list I call todo_deep. Reading that is always good for a laugh.
Love it! I use the term 'back burner' so much that people in the office refer to it. It's that pile of physical papers that are sitting in the far corner of my desk. Some of the paper is yellowing. :hehe: