to restore dry erase boards that are hard to erase: spray a clean board with wd40, wipe dry with paper towels. the wd40 fills in the dried pores of the board that hold in marker ink, making it easier to erase.
Soak orange peels in vinegar for two weeks in a sealed mason jar then pour the vinegar into a spray bottle. Use as a non-toxic and yummy smelling "green" cleaner. I love using vinegar to clean with but have always wondered how to make it smell better - can't wait to do this!