Kawazuki - thanks heaps those are some great suggestions! I spoke to them today about changing the way they speak to each other. Because a lot of the time they're not even arguing or fighting but it sounds like they are IYKWIM? Instead of just saying "no" quietly they will both blow up straight away and scream "NO" and then the kicking starts...

Agghhhh!

And Lulu - I just googled velcro wall blankets and up came this post lol!