Nettie, this is pretty similar to what I've come up with after much brainstorming after the past few days of some serious contemplating!! Great minds... OCD is me as well.
So here's what I've decided to try.
1. I went to Staples and got a disk-bound binder, as well as the corresponding hole punch (that costs a small fortune *cough*don't tell hubby*cough*), and some supplies (pockets, post-it holding page marker, etc).
2. I made up my own version of a weekly planner page and calendar. The ones I was finding were not really all that different. But they were expensive and dull and not quite exactly what I wanted. So I customized.

3. I put together the binder, with tabs for each month's calendar. Also tabs for things like the Booster Club that I'm involved in, school papers that need follow-up, a master list for menus, etc.
4. I made an insert that I can print for each week. It's 1/2 page wide with weekly menu on one side and grocery list on the other.
5. I'm still planning to use my online/phone calendar. I am just not willing to give up the phone reminders. I WILL, however, be more selective on what I set reminders for. Also, another benefit of the online calendar is that it's easy for hubby to see, as all of the calendars are shared (and yes, Nettie, ours are color coded by person as well... each person has their own calendar, and they're all merged together onto one master calendar)
So we'll see how this system works out. So far, I have LOVED knowing that all of my notes and papers to follow up on are in the same place. I have loved having the space to jot down notes without having to go through all the steps to set up a task in my phone...sometimes that's just too much. I'm hoping as I work with it, I'll be able to iron out kinks and getting it working like I envision it in my mind. We'll see how it goes.
Oh, and I forgot, we also have a chalk board calendar that we update each week with the week's schedule & agenda. It too is color coded by person. And I love the character of the chalkboardiness of it.