If you like using a paper calendar you can write (and scribble!) in, I highly recommend my favorite weekly planner, the Planner Pad.
It comes in several variations and sizes, the most convenient of which is the Personal size because it fits easily in most bags and purses.
I love it because it leaves so much room to record important everyday information, and the yearly pages in the front give you a macro look at what’s happening in your life.
Here’s what last year ended up looking like, for instance:
Order an inside pocket while you’re at it to hold odds and ends of paper, and a book marker so you can easily locate today’s date.