The most difficult thing in life is managing finances so that they fit into the budget, temptations occur in many ways, if we leave the house it will be difficult to avoid not buying what we see, and when we hold our cell phones the temptation to buy things that look fun is also difficult to avoid, I think the best thing to avoid unnecessary spending is to have a strong principle not to spend money.
We can still manage to not buy those things when we go out to buy something because if you have a short money for sure you wont be buying it but the temptations is already there but you have discipline to control it since i came from very poor family i do can resist to the temptations that is why i can still not overspent sometimes but if ever i do have alot of extra money that is the time that sometime do buy some extra but still those just needs not wants