The key word here should be " Discipline". Even if you put all your money in the desert, and throw the keys away, fact still remains that you know where the money is and what direction you threw the keys. And since you do, one day, you would retrace your steps back and look for the keys if you are not disciplined.
The success fact in saving substantially is discipline and consistency. Try this
1 Draw up a budget.
2 Set an amount you want to save.
3 Prioritise and set aside a certain amount for recurrent expenses ( tithes, transportation, feeding, call credit, toiletries and so on).
4 Lust out the essentials to buy and cross out as toy buy them so you don't duplicate. The secret is buying these things are the beginning if the month.When going for groceries, Use the big supermarkets, you will get stuffs at reasonable cheaper prices.
5 After doing all these. You will realize that you still have a lot left. The good news is that you can use what ever remains of your balance to give yourself a treat.