If you do one thing...
BANISH EXPENSIVE CALLS
If you want to phone a company but you can only find expensive 0870 or 0845 numbers to call, then take action. Firstly, check if there is a number for customers calling from abroad, which starts +44. According to Which?, these are likely to be standard 01 or 02 numbers, which are cheaper than 0870 or 0845 numbers. Just replace +44 with ‘0’ to call from within the UK. Also many companies will have cheaper alternative numbers – find them at saynoto0870.com.