My first notebook entry is a file called 2011-01-20.txt. I just opened it and had a look what I was doing on that day - really interesting! These files have us

My first notebook entry is a file called 2011-01-20.txt. I just opened it and had a look what I was doing on that day - really interesting! These files have useful commands, todo lists, debugging notes, stack traces, useful links. Don't overcomplicate things - just make a text file each day and dump everything in. Don't bother too much with structure or tidiness. If you need info from the previous day, just copy it across. Once you've got enough stuff in your notebooks to be valuable do remember to get an automated backup going.