I've been immersed in spreadsheets this week. And I have come to the conclusion that what we need is a good daily figure to show the best cash savings rates available. Hundreds of key indexes are produced each day – the best known now is probably LIBOR, the rate at which banks lend to each other. Many more – such as share prices, foreign exchange rates and the price of a barrel of oil – are calculated each minute the markets are open. But no-one produces an official market figure each day for the very best cash savings rate.

The Bank of England produces a monthly average figure. But at the moment that is languishing at 0.18% for instant access accounts. While the best rate in the market is more than 3%. So what we need is a guide to the best rates so we can move our cash and chase the returns. Especially after what Barclays Capital calls "the lost decade" 1998-2008 when cash beat shares investments (on its measures) for the first time for many a decade.

*** ON MONEY BOX THIS SATURDAY ***

On Tuesday the inflation figures for February will be produced and it is expected that the Retail Prices Index will show the cost of living has fallen over the previous 12 months for the first time since March 1960. In the last 49 years we have got so used to prices rising that many items are linked to the index. Pensions, tax allowances, wages, annuities, and even some savings products. So what happens to items that rise with the index when inflation actually falls? Will they go down too? We find out.

Quick. Hide behind the sofa. The bailiffs are at the door! Actually it is just our reporter Bob Howard who has been out with the bailiffs in the week that the government announced it would regulate them and scrapped plans to let them break in on their first visit. I ask the Minister in charge to explain the changes.

The Financial Services Authority sets out its plans to stop the horses bolting next time the doors on the banking stables are left open. We'll try to sort out the mixed metaphors before we go on air. And hear why the FSA's own consumer representatives say it is a missed opportunity to make sure customers are treated fairly.

We are also planning to look at the huge cost to the building societies of the collapse of Bradford & Bingley and the Icelandic banks trading in the UK. What do they have to pay? And why?

There may be more. There may be less. Find out what's in and what's out by listening to Money Box, Saturday at noon. Or if you miss that, the repeat is on Sunday at 9pm. To make sure you never miss Money Box why not subscribe to our podcast – we had 150,000 downloads in January. Just go to our website bbc.co.uk/moneybox where you can also listen online or look at lots of other exciting stuff, including videos.

Best wishes,

Paul

PS: Don't forget the programme taster on BBC Breakfast between quarter to nine and nine o'clock. If you miss it, you can watch it on our website.

e-mail Paul Lewis