I used to spend about $250.-$300. a month on wine....when i stopped, i discovered I was wasting $$$ that easily covered my cable/internet/land line service and the monthly utility bill.
i now make double principal payments on my mortgage every month..(rec'd a big pat on the back from my accountant)...i take lunch & coffee from home for the past year and was able to afford a complete bathroom remodel...i had the extra cash to buy a lot of fixtures and toilet when i saw them on sale and save even MORE $$.
my sobriety snowballed into much better $$$ management.
there is a lot you can do with an extra $12,000+ per year. save the bills and keep documenting his expendatures....he'll never understand the logistics until he is ready to quit.