Like @MonaChopsis I have spent way, way too much time working out how to give away money without it being traced to me.
I would also want to avoid spending hours in meetings with business managers and avoid being ripped off by business managers who know that I don't card much about the details.
Tricky
Another tricky part is that, currently DH and I are 'comfortable' and never worry about bills. The only time we ever argue about money is discussing how we would spend lottery winnings. For example, he immediately talks about the fancy cards he would buy. I would never buy another car but would have a car service ready to take me anywhere I wanted to go ....
Sigh, it would be tricky
What I would like to do, would be to fund new, decent quality affordable housing. Which included decent, rather thank skimped services like transport and schools Current developers make loads from buying up land and sitting on it.
Doing Anything worthwhile, rather than just consuming, would throw up loads of problems, objections etc. I would want to start with a very clear picture of what would be done. I can see how easy it would be to give up in the face of obstacles. I don't know whether I would keep going.
I'd like the opportunity to try. However, I recognise that there are other opportunities I currently have that I am not going for, for example to eat well and exercise regularly.
Now would be a really good time for this to happen. We are in the process of doing probate for DMother so could easily justify a few payments to deserving causes.