I do my errand kinda stuff on my phone's task thingy because I'll forget the list at home, but always have my phone.
If I am working on something throughout the day and some more to do pop up. I write those on a post it and then go back to my task at hand. Then I add the post it list to my journal the next day. So I do a combination of things. If I’m doing a to do list that includes errands outside the house then a post it works well instead of bringing the whole journal. I also intentionally use a journal that is not too large so it’s easy to carry in my purse or backpack and when I travel.
I hope this is helpful.