One of our main jobs is to make sure you can pay for things easily and securely in the UK. So we produce banknotes (cash) and oversee many of the other payment systems you use (eg with a debit or credit card). We also work to keep the cost of living stable so your money keeps its purchasing power. One way we do this is by changing the main interest rate in the UK. And we regulate UK banks and other financial firms so you know they are safe and sound.