I have an Excel spreadsheet that has dates down the side (each row is a new day) and actions in the columns (water change, dose trace, feed corals, etc...). I have an 'X' on the dates and in the column that I need to perform that action for.
So for instance.....I have an "X" every other day to remind me to dose some coral food. I have an X once a week to do the water change. That way I can not only glance at it to see what I am supposed to do that day, but I can also see when I did it last. I change the color of the row so I know I did the action. I have it populated for like 6 months from now. Just cut and paste the regularly occurring things and it is easy.
The only drawback is that I need to look at it once a day to make sure I did the action and logged it. Otherwise I might forget when I did what. But it is easy to remember since I know to update Excel if I ever find myself feeding, dosing, or water changing.
oh, panoob. You make anything sound reasonable.