make is possible to click on items and save changes
when I click items to hide some elements in my plans, this doesn't save after I log out and then go back and login again. For example, I don't want my homework and notes displayed in my plans. I unchecked those things in "items" so I wouldn't see them. They disappeared for the time being. However, after I left and returned to work, those things appeared again the next time I logged in.

Hi Donna,
If you actually sign out of planbook.com (click on your display name in upper right corner and select Sign Out), this will save your Items selected. Give it a try, and let us know if you have any questions.