When vs If
I tend to look at things as one of the following:
1. When I have time.
2. If I have time.
When I have time are my committed projects. Some have a narrow window, others a much longer window. These are the things I have decided must be accomplished at some point. I usually keep my projects in groups, long and short term. All of the next actions for all of my projects are combined, but short term project next actions are tagged so I can see them separately when I need to.
If I have time are things to look into. No commitment here. Once I decided to make any movement on these projects they get moved to the long term list.