Best erasers for dry-erase boards micro-fiber facial pads that come in a set of 3 at the dollar store. They last all year :
HUGE DIY dry erase board for $20
Alexi Palazzari Picture Frame Dry Erase
DIY Dry Erase Calendar ... get a cheap frame from the thrift store and print off a calendar. Less expensive and WAY cuter than the ones from the store.
Dry erase boards made out of picture frames! This would be awesome for a teacher's desk to keep reminders/to do's on. Wouldn't get lost in all the other papers :)
DIY Dry Erase Board from poster frame - like that it is plastic and not breakable
DIY Magentic Dry Erase Board Chore Chart - greyhouseharbor.com
Erase the ABCs: Easy Alphabet Activity that toddlers and preschoolers will love; quick and easy activity; home school activity
Use rubbing alcohol, hand sanitizer, or vinager water to clean your stubborn white board stains. Sure beats that expensive expo cleaner!
DIY Glass Dry Erase Board with Aluminum Trim