I've been using my bullet journal as a planner for a little over a year. I haven't been consistent with it, and when the baby came things kind of fell apart in the scheduling/planning department.
I'm in my second notebook, and this time I went with a hardback version similar to what's recommended by "real" bullet journalists. I got mine from Target on clearance though, and it's off-brand.
I've found that I much preferred the spiral-bound book that I used at first, because I like leaving the book open and turning it to the current page. That's not possible with the hardcover, and even with the ribbon bookmark it's not as quick access for me. So I have a spiral-bound to move to when I finish this one up. I'm only halfway done with it though ... probably because I don't use it as much because it's slightly less useful to me!
My favorite thing about my bullet journal is the making lists. I love-love-love lists (in fact I want to make a list of all the reasons
Americans, particularly white Americans, made such a mistake last week,
but I digress...).
I also really like saving things like stickers or small drawings Jane makes. I don't do anything fancy. I can't draw and my lettering is sloppy at best. I'm just scribbling things in.
The index is still a key feature that I like. I just haven't been making as many lists/notes sections that need to be indexed!
My work ebbs and flows, and when things are hectic the bullet journal is useful. I've had a few projects and busy days where I needed to write out everything I need to do. There's something so satisfying about crossing off something from a list -- whether a load of laundry, an email blast or article written.
I don't really journal anymore in a regular way, and that's something I wish I did. I am a writer and I need to really write more. (NaBloPoMo is proving that again to me this year... When will I find my year-round dedication to posting something daily?!) Sometimes it's inconvenient to have a pen and paper in hand or to type it out. But I wonder if having one book makes me less likely to write out longhand. Probably not -- probably just a factor of this stage in life.
One thing I wish I were better at recording is Livia's milestones. I think I was more meticulous about Jane's -- in her baby book and in her weekly emails. I still do the weekly emails but don't write as much about Liv's development. It's not the end of the world that specifics are lost to time I guess. But a bullet journal would be a good place to record that kind of thing.