I use a google spreadsheet. Shortcut on my phone home screen so I can add items any time easily.

I log all my lab work and how many hours I've worked in a day and it calculates my hours in a separate tab automatically. Items I need to follow up on are in bold, and get unbolded when I've followed up on them. When I have to write a report, everything is there in chronological order and it is super easy to take the relevant lines and write out the path of my work. When I get into the lab, I open my sheet and bam! I'm right where I left off before I can have the first sip of coffee.

This has been a complete game changer for me.

I've never been so organized in my life.