Buy a house with a garden - probably close to where I live now because I like it here, I just miss having any outdoor space and I'd pay off mortgages of close family members and give them enough to go on holidays etc etc.
A big holiday to South America - always wanted to go to Macchu Picchu and Patagonia.. oh and see the penguins.
Work part-time (I don't honestly think I could give up work altogether but a three day week would be quite nice).
When I worked in learning disabilities, a man, instead of donating money to the charity I worked for, donated 100 overseas holidays in the sun including carers (I was one of the carers that went.. !), All expenses paid for the service users. I thought then and think now, it was the most amazing thing as a lot of the people we took had never been on holiday overseas and it was in a luxury hotel with a pool and fine dining. I felt that although the charity would have preferred the cash, the joy that it brought to the people I worked with was just incredible.
I always thought if I ever had the money, that's the kind of thing I'd like to do.