I've been recommending Google Keep for a few months now. It's made a huge difference and it's a free, easy to use, app.
I still keep a physical notebook and use Google Calendar, but organization and limitations inherent in those platforms made adding Keep a no-brainer for me.
Google Keep is flippin awesome. If you have a gmail id, you already have access to it: go to keep.google.com.
What makes it next-level useful is there's an app too. So for example, I can be browsing this shithole, and my stepdaughter tells me she's out of shampoo. I click my Keep bookmark, open the "Running Grocery List" which I keep pinned to the top of the notes, and add shampoo. Next day I'm at the grocery store, and I whip out my phone and open up the Keep app, and lo there's shampoo on my shopping list. I click the checkbox when I get it, and that item disappears, crossed-off. That night I'm playing Splendor on my tablet in bed while my wife watches her stories, and I remember we need garbage bags. I open up the Keep app on my tablet and add it. I shared the Running Grocery List with her, so next day she's
at the store, and if she opens Keep on her phone she can see that we need them, and she can get it.
Honestly, the shopping-list stuff alone
makes the app worth using. But it can do a whole lot more.
We’re big fans of Google Keep because it sits in a middle ground between complex notes apps like OneNote or Evernote, and simple apps like Simplenote.
I have a bunch of notes and lists in Keep. I've got a "Gym" note pinned to the top, for complex workouts I want to do (excersises/sets/reps). My wife wrote up a points system for ways our son could earn his way to us buying a PS4 game he wanted: she shared it with me in Keep and pinned it. Below the three "pinned" notes (grocery list, points for The Boy, gym), I have a bunch of random ones saved. Christmas gift ideas as they occur to me thruout the year; books I want to read; music to add to my player; projects for the house; the clipper settings for my & The Boy's hair at the haircut place; stuff my mom asks for; stuff I think my stepdaughter needs; etc. I also have some old notes archived: stuff for the contractor who did our kitchen a year or so ago; details about some pianos I looked at in San Jose and might think about buying someday; the address for karate camp + a list of items to pack for it; stuff I was interested in at Ikea along with pics of them; a recipe for a ramen-&-pork-loin soup dish.
Oh yeah, I also have a Work note.
To me the "messiness" of Keep is charming. It's like a big pile of sticky-notes: but you can actually find
Google Keep would probably be perfect for Bullet Journaling. Can't say for sure as I barely know what that is.
But if you're looking for a way to "tech up" Bullet Journaling just slightly
– by being able to use computer text-editing instead of hand-writing (and crossing out or erasing) + having your journal backed-up in the cloud + accessing the journal from multiple devices (computer, phone, tablet) – then Keep is probably perfect. If the table of contents is a crucial part of Bullet Journaling, it would be easy to pin one "table of contents" note at the top of Keep, and then have a zillion random "pages" or notes below that. Their titles could be numbers, or the table-of-contents could refer to a keyword in the note title, or whatever. Lots of ways to approach it.
You'd miss the tactile feel of putting your pen to paper, and maybe that's important. But there are benefits too.
Anyway, Keep is great and worth adding to your arsenal whether it's in conjunction with Bullet Journaling or not.