BT's recently announced big price changes. The bad news is that from 1 April line rental increases from £11 to £11.75, however opt for paperless billing and pay by direct debit and you can keep this down at £10.50.

While it's been boasting free weekend calls for all customers on its basic Option 1 tariff, it stealthily hiked daytime calls at the same time. A 60 minute call has gone from 4.5p to a whopping 96p.

Don't fall victim to this, instead keep the line and get the Primus Saver 2 tariff which gives free weekend as well as free evening landline calls, without paying a penny. Even better, beat the the high daytime and mobile charges by using override provider 18185 to save a fortune.

For full info on how these work, and more tips to slash the cost of home phones see