getting organised, tips, advice...help!

In my house I have 4 people learning piano (and one piano!). We have a busy schedule of school, gymnastics, taekwondo, swimming...Ok you get the idea We also do other learning activities daily. Now what I found was that a few days would pass and I would notice one of my children hadnt done any piano time and I hadnt noticed. So I decided to get organised
We now have a reward chart for each child, with the activites I expect them to get done each day. Jaykobs is here

It lists playing the piano seperately to playing piano games as I try to use the solfege cards, powerpoints or softmozart game dailly too. This system is working well for us! He is very keen (as are the girls) to fill it up. This week his reward is lego because we need more lego We need to add another column for his photo eye play, because he has decided to that with the girls. I also have a page to print for piano practice attached...its not perfect but is good for little kids, it doesnt give enough room to write scores, but does ensure a minimum is done each week. I need to work on this one a bit as it would make Jaykob and the girls keen to practice more often or for longer. At the moment we use a notebook each but I cant keep track of the games easily in that, hence combining the book and chart.
I would love to hear your ideas on how you keep organised.

Oh no! 30 days would be heart breaking! Jaykob is finding a week long enough! I was considering a daily check board to keep him keen but he has the system worked out now. I have a few if you want me to load up some blank ones. Or Nadia I don't mind doing one for Isabella if you tell me what she does each day it doesn't take long, I did it in word as an insert table. Keep it to 8/9 activities a day at the most or it looks overwhelming. A monthly chart for you could be good as you could see at a glade which activities you constantly miss

I am pleased to report this system of reward charts is working very well. All my kids now expect to play both gentle piano and a piano game every at every practice session Previously they were doing one or the other. Their charts are full of stickers and they are super keen to fill every square (even though I would give them the OK for most squares full..crikey they do enough as it is!) Now I only need to do a quick glance to see who is slacking off and a self check (because its usually me! ) and I can direct my energy to teaching...or housework if I am lucky