At my research/project-based job, I've started a habit of documenting my thoughts, to-do tasks, updates throughout the day, complete with first-person commentary (that sometimes goes off on a tangent). At the end of the day, I send it all to myself. I now have a Work folder in my inbox from 'Day 1' to 'Day 90'. Apart from being a record of progress, doing this helps me at least put my many ideas in writing...and yes, to my brain, it also works like a RAM does to a computer.