We have a whole plan for this, not because we actually believe it's going to happen, but because it's fun to think about.

Plan involves

1. Gifting close family members wnough money to pay for their mortgages and other debts
2. setting up an investment envelope from which we can gift shares, which will pay yearly dividends and gifting those to family members. Idea is to ensure everyone will have some money to spend, but prevent squandering of the money.
3. I would probably start my own company, have a few ideas. Wife would probably move to working part time (it's fun to work, but it'd be nice to work a little less)
4. There is an ancestral home of my family which we have not had the money to maintain, I would hire people to fix it (and probably spend time fixing it myself)