Some people are so careful with their cash they'll go through the supermarket shopping receipt with a calculator, checking for overcharging and a correct total.
Others will walk into a coffee shop, hand over a fiver for a latte and not even glance at the change.
If you spend more than your salary each month, as an increasing number of people do, it might be time for a reality check.
Taking the following quiz might give you an idea of how in control of your spending you are, or if you need to pay a lot more attention to it:
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