Politics aside, the introduction of the euro has at least one upside: travellers to much of Europe only need to get to grips with one currency.
Thanks to Austrian company Caretec, there is a simple gadget, the Cash Test, to help you recognise the value of euro notes and coins. You can buy the Cash Test online (price €3) or email your order to office@caretec.at
Alternatively, you could try the euro version of our bank note detector. This small, discreet and easy-to-use device helps you identify different notes, with a unique vibration for each denomination. It will detect the £5 from your £10, £20 and £50. Priced from £19.95.