Seeing both my brother, Skjalg - and I - are still living at home. I thought it to be suitable that I found this guide on WikiHow!
"Not quite ready to push your adult fledglings out of the nest yet but getting fed up with their lack of contributions to the household budget? This article will provide you with some ideas on what to do to make the budgetary cycle in your household a little fairer on everyone, as well as getting them to do more of their share around the house."
Maha. It's all here --> http://www.wikihow.com/Get-Adult-Kids-to-Pay-Their-Share