An agenda is still something I use to stay organized - and since I always started a new one in September when school started, I still do. I'm a bit late on it this year, but I'm thinking of picking up this one by mylavendercottage.
I like the weekly pages, with lots of room for each day's tasks, & the monthly tabs which make finding your spot so much simpler! There are extra pages at the back for phone numbers, to-do lists & notes too.
Do you keep an agenda or some sort of monthly planner?