I have this app called Evernote where you can take a picture then draw on the pic. You can save it, email it, what ever with it. Pretty slick for remodel work
Another app called Task PRO. You can make lists and on each item, you can do a sub list. Each item can be a sub list and so on. You can edit each item or delete it by checking it. You can prioritize each item if you choose and schedule them by date and time
