I own a hobonichi, which is really just a hipster day-planner. The key feature for me is the river paper, which allows water colouring.

I try to water colour everyday. Started that way at the beginning of the year, and after a few months, now pretty much use it as a day-planner. Of course, I would love to get back to it, and will make an effort to at least catch up over the weekends.

Would love to hear how you journal and any habits that work for you.