How to Get Rich in 3 Simple Ways

I once watched The Oprah's show and saw a smart, simple, and yet a great suggestion of how can you get rich and not wasting your money in 3 simple ways. I think it's applicable in Indonesia too. Here they are :
1. Don't spend any money in one day
2. Don't use your credit card for one week
3. And last, but not least (this is the hardest part for me), don't eating out for one month
If there's anyone who thinks these are easy to do and can easily done it, you must be proud of yourself. But for they who think these are hard like me, let's try them..

PS: the sources said if we could did it we would safe money more than you can imagine