Yesterday I was watching a woman on YouTube who did a video on how to plan a party. She used a Google Sheets document to list all her to-do items, including breaking down the steps on cooking the meal she was going to serve. As the video went on, she broke it down further, into columns like "the day before," "the morning of" and "an hour before" and dragged and dropped various items into the columns.
I'm looking for an app or a spreadsheet that would allow me to do something similar with travel plans. I've had a "things I can pack ahead of the trip" list for a couple of years. I think something like the above would really be helpful!
Does anyone know of such an app or spreadsheet? Thanks!