Should I use a price calculator as I shop?

Should I use a price calculator as I shop?

Jane Furnival (Author) gives expert video advice on: Should I plan for Christmas throughout the year?; How can I stop myself spending money on unnecessary things? and more...

If you have a price calculator and need to use it to help with budgeting, then use it when you shop. If you've got a calculator on your mobile phone or you want to slip one in your pocket, why not?