Billing is an art and I'm drawing stick figures. I'm terrible at catching time, especially time spent reviewing files so I can do check-ins, short email responses, task/deadline management, etc. Managing partner has a magic brain that retains info like no joke, but I typically have to check the file and "relearn" where the case is before I can do X. How can I capture more time and make it clear to a client that the "quick" task reasonably took .3 or .4? And/or any billing guides to share?