A penny sweet no longer costs 1p and a Freddo chocolate bar costs quite a bit more than 10p (the 1994 launch price), sadly. Why? As inflation increases, your money buys you less.
Inflation, which occurs when the price of products and services increases as the purchasing power of currency falls, is a thermometer economists often use to check an economy's temperature.
Too low? Bad. Too high? Also bad.
The eroding power of inflation on cash is one of the most compelling reasons you should seriously consider investing in assets that can be expected to return more than the rate of inflation.
You don't want to end up like that guy who traded a wheelbarrow full of his life's savings for a cup of coffee, do you? Oh, you're already doing that every morning? Carry on, then.