Smart But Scattered (which was a big help for me, in realizing that the EF shortcomings I was attributing to DD were really "she's not good enough in those areas to compensate for my own EF weaknesses") has some good suggestions for both of those. (I can't copy-paste out of Kindle Cloud Reader, sorry!)

Their suggested method of working on planning and prioritization worked well for us, but DD's issue was mostly "I don't know how to break down this overwhelming task."

We use the Chore Board of Doom (http://i23.photobucket.com/albums/b395/allyphoe/Chore%20Board%20of%20Doom/ChoreBoard3.jpg - although the current board has far more items) at our house, and the tasks get done with little nagging. DD can choose what to do when, although if we leave the house without her having washed her face, washing after school does not count. wink I do give her a prompt to mind her board if I think she's running out of time, but if she runs out of time, the board closes earlier the next night.