I think writing everything down is very valuable. I also think it is important to drop things that turned out to not be so important. This helps to avoid an eve

I think writing everything down is very valuable. I also think it is important to drop things that turned out to not be so important. This helps to avoid an ever growing list. I do this by keeping my list on a small paper (A6) in my notebook. When the page is full, I transfer over only the incomplete tasks that are still relevant over to a new page. Often also refining their scope. This chance of default from 'keep' to 'not keep' has had large impact on how many (useless) tasks I drop, and the associated mental burden.