If it is challenging for you then try this out - Change your house and you will realize while shifting how much unnecessary money spent on wants.
Another way of committin to this action is whenever going for shopping -
Ask yourself can I manage without this stuff for next 1 month. If response is Yes, then don't but it.
We as family also check if the stuff will be consumed within a month, then we can buy else no need.
Even if you can afford it, does not mean that you need to have it.