Maintaining sanity - I go through phases depending on my mood , sometimes weed, sometimes strong lager or a certain spirit that i have taken a fancy to - sometimes to excess so costs can vary. I know when its getting excessive so i knock the spirits on the head and go back to aldi 4% beer. As NRT has said above, a couple of cans a day helps to take away the worst of my back and shoulder pain.
Other times artificial crutches just don't cut it and the dog gets some really long walks which both of us enjoy. Other times I'll ferret or even buy some random junk and turn it into something else just to give myself something to do - usually giving it away at the end. Luckily most of it is auction or car boot purchases so little to no financial cost.
The one thing i do pay out on is old computer hardware as i have an interest in it, although technically it doesn't cost me money as i always either buy below market value or buy as a job lot and sell off the stuff i don't want to offset cost. I have explained to the missus that in the event of my death, even though she regards a lot of it as junk, that it is worth good money and to sell appropriately.
The one thing i haven't had to do again is go back to prescribed antidepressants - it was the last time, and pulling myself out of that hole, that changed my way of thinking and made me realise that i had to put myself first.
Of course if we are talking about maintaining sanity then i have to mention the missus, she puts up with a lot - but i also give a lot back. We have a different type of relationship than i have ever had before, both of us understanding each others issues and foibles. To a lot of people that know us it seems strange but it suits the pair of us.
Anyway, did this reply answer your question? Probably not, but it was a great post and it will be interesting to read other peoples responses.