Which Green Deal measures are likely to pay for themselves?

Available for over a year

We follow a Green Deal assessment and crunch the numbers to see which measures are likely to pay for themselves. Most online shops will deliver to your workplace, but how do employers feel about having a pallet of beer - or your weekly shop - sent to the office? Plus, one supermarket says more of us are turning to expensive wines, another says we only ever try four varieties. We look at wine buying habits and the best bargains out there.