This is my first garden this year. The Phoenix area can be a challenge for gardening. I'm keeping a paper journal with daytime highs, overnight lows, a statement of the general weather, my pool temperature (which has nothing to do with gardening, but it seems like a handy place to note it), and what I did that day. My plan is to put in tabs to show where each month starts so it's easy to look back next year.
For my To Do list and reminders about what needs to be done, I'm using Trello, which is a great online program and free. It told me today that my blueberry vinegar is done, so I'm working on some dressing recipes to try it out tonight!