I always said that if I won the lottery, I mean huge, one of those several hundred million dollar things, that my coworkers would just never hear from me again. They'd show up to work one day, and some of them would have a check on their desk. The useful ones. But I'd just be gone.
As I don't actually want to stop working entirely, I just would like to go down to one or two days a week, with an option for getting the next couple weeks outta the way so I can be off for months at a time, I plan to wait until the day I could never work again for the money, and then try to negotiate fewer hours.
Something like, "here's my two week notice. If you want me to stay on part time, I'd like that."
But I know too many folks who've been screwed over by their employers dropping them with no notice to trust this place with months notice, and I'm way too ready to be done to offer months notice after I could already be gone.
I think if you do have fantasies about going nuts or whatever, you might look into a new job right now instead of waiting. There's alot of neat jobs out there folks.