OK, let me share with you a secret on how to die very rich:
1. Work 7 days a week
2. Have no friends (with 1. you won't anyway)
3. Have no relationships (as above)
4. Don't sh*g, except with 2 cond0ms and in the back of a car with false number plates
5. Don't go out to do anything that costs money
6. Have no hobbies that cost money
7. Live with your mum (which will generally take care of 3 above)
8. Invest all savings in FTSE-100 trackers
Following the above, I can practically guarantee you will die with a 7 figure bank balance.
Easy, really.
It's a shame life is such a compromise.