Discussion on: How do you keep track of what you’re working on so you remember where to start next time?

I have a OneNote page where I outline the things I need to do before I start coding, like this (it's usually much longer):

Modify feature X

• Add field to model
• Modify EF configuration
• Add EF migration
• Convert dictionary key from string to long
• After dictionary filled, group by property N, sum totals
• Checkin, Deploy to Test, verify change, update ticket

Then delete the page when I'm done.