Left an SD at home and then the ipad once . . now I use a checklist. Here's a pdf you can use to make your own. It is a little over the top for casual use but contains everything you need for commercial ops in Canada.
For my UK pfco we use a checkllist and it has saved my bacon loads!
My director and I did a test inspection once and i showed him the live feed. later he wanted to see it. I then realised i had not recorded lol I ran out the same day and did it again lol