I thought I'd start a discussion about what works and what doesn't for cleaning dry erase / white boards. I'd love to read your ideas! Last year, my white board was SOOO bad that I went through tons of cleaners while waiting for the replacement I was promised (but never received). Here are some of the things I found that worked: Mr. Clean (and the generic brand) "erasers" that you find in the cleaning section at Walmart and (even better) DollarTree. I stopped using the "regular" dry-erase erasers and switched exclusively to these for all-day erasing! When you need to do a heavy cleaning, just spray your board (with whatever) and use one of these to "scrub" it, then wipe with a paper towel - it works great! Acetone (aka "regular" nail polish remover)! Don't let your kids near it, but at the end of the day (after they are gone), it is great to scrub with - even when someone uses permanent marker on your board. Rubbing alcohol - works "okay," The best liquid (and I tried Foray and a NUMBER of different brands) official white board / dry erase cleaner I found was the Expo brand. Yes, it's expensive. Yes, it's "fume-y". However, I NEVER used it when my kiddos were there, and it out-performed everything, especially when combined with the cleaning "erasers." Just my . Hope it helps someone!