The only way this makes any sense is when it comes to personal growth. For example. I'm working on a product. I have not finished it yet but along the way I have learned new programming languages, new programming skills, new web skills, new marketing skills, and overall how to integrate a multitude of new services. …

Tracking effort is important, but you need success too. Effort without success is meaningless (I don't care how happy it makes you feel).