A lot of things we wanted to do while free but most because of lazy/tired or doing other stuff(playing game or etrc) the thing we wanted to do always be throwed, means we won't do the thing we wanted/planned immediately.
There are two results:
You will completly forgot it when you want to do it again, ex: something you wanted to draw or mark down.
An other result is that when you free you always don't want to do the thing you wanted. Only in the environment for example: while working, you would do the thing you wanted very hard and very regret that why I did't do it while the time was free.