Bank/building society savings -
Bank and building society savings are not exposed to any significant risk. But over time they can have their value eroded by inflation.
If you don’t have much paperwork, it might be worth popping into, or telephoning all the banks and building societies you have had dealings with during your life and checking to see if you still have any accounts with them.
Once you know how much you have, and if you can afford to, consider putting some into a savings account with a longer notice period or a fixed term that’s likely to have a higher rate of interest and/or bonus.
Shop around for the best savings rates in the papers and online. Companies continually change their products and rates so it’s worth sparing some time to review what’s on offer against what you’re getting.
It's also worth using your annual ISA allowance to ensure you benefit from tax-free interest. Again it’s important to shop around for the best deal every April.