How to use
Select a section by touching the title. This will take you to a card "stack" which is a collection of items you can swipe though. You position in the stack is indicated with the dots at the bottom of the screen.

You can check off items on the list by touching them. The Reset button will clear the checkboxes on the card you are on, the Recycle button will clear the checkboxes in the entire stack of cards.

Note that navigating away from a stack will always clear the entire stack.