Sometimes we have to do things we don't want to do at all but we have to. Still some things like that we can get rid of anyway because it's not that necessary. So we just have to think well if we really need to do that or not. Or at least we can find a solution to not do that anymore or to do it less.
The time is limited in our lives, that's the main reason to save it. Otherwise in the end we will find ourselves spending so much time on what we could replace with something much better for us.
Knowing what we exactly want from anything we are doing will save us a lot of time and energy and our life will be much productive !