Here's what my calendar looked like in January:
You may notice that I wrote exactly 3 of those posts on the day I had planned to write them. Oh well, "the best laid plans" and all that, right? Even though I didn't stick to the schedule, I still referred to the calendar every day as a general guideline, so it was still useful in its own way.
I also use several notebooks to plan out my blog posts. I carry the little pink ones with me so that I can write down ideas right when I get them. I have a terrible memory, so these are like a tiny pair of crutches for my brain. The big black notebook is what I use when I'm at home; it's less portable but more fun to write in.
So basically, my blogging ideas live in a state of organized chaos, just the way I like it.
Do you have a blogging calendar as well? I'd love to hear about it.