Monthly cost per child: £35

Even a simple trip to the cinema can end up costing a small fortune by the time you've bought the tickets, popcorn, ice-cream and sweets, not to mention a meal either before or after.

Cost-cutting tips: Research the times of the various showings - find out about off-peak rates. Look out for special promotions such as two-for-one tickets for shows and events.

Bypass the totally over-priced popcorn and drinks at such places (pop in to the supermarket beforehand). Take a picnic or healthy treats with you to pre-empt those calls for crisps and snacks. Encourage your high-spending teen to take up a hobby. It doesn't sound cool but it can be - think kickboxing, hockey, football etc.