For shopping, I really find this app exceedingly useful. I am not fond, though, of having to get rid of the keyboard to find the add button. I like the fact that when you place your eggs in your cart, you can touch that item on your list and it removes it and places it below with a line through it so later when you need to get some more, you can retouch it and it brings it back to your list and you are not having to write it back in. That function is also good when you have to shop and not sure what you need to get, you can go through the list and touch the items you need bringing them to your remembrance.
Finding uses for the other functions is not easy though.
guts girl about Organizer To-Do: Daily Planner, v3.7