I organise the budget in our household so I don't have a choice but to be good with the discretionary money. Having said that I have to give credit to my DH for being very supportive of my hobbies both in praise (he always tells me that he is proud of the things I make) and also in trusting that I will not go berserk buying and letting our bills go unpaid. Some months I buy lots and other months go by with no purchases.