Both charts are simple- just 12x12 pieces of card stock, divided into a "To Do Today" column and a "Done!" column. There are a bunch of chore tags to the side- the focus area of the day (Living/Dining, Bedrooms, Family Room, Bathrooms, Kitchen, Garden, Outside) that we all work on, and specific chores or responsibilities (pjs on, empty hamper, set the table, clear the table, etc.).
It's working pretty well. Avery still tries to find things NOT on his chart to do, which is nice, and sometimes tries to negotiate out of the thins on his chart, which is maybe not as nice, and Miles is happy to see what his jobs are without needing help to read. He likes being able to see with his own eyes that he has jobs that are just his to do, but he also likes knowing that he and his brother have some jobs in common, too.
Anyway, another project down, and another tag moved to the DONE! side of my own mental chore chart. Hooray!