Perhaps
high food prices will make people stop and think about throwing away food. I will quite happily eat food that's past its sell-by date*. I sniff it first and if it doesn't smell off, then it's fit for consumption.

*Seafood is of course an exception to this rule.

Edit - regarding butter substitutes, I much prefer a small amount of butter on my bread to any amount of low fat spread. Especially that 'I can't believe it's supposed to fool anyone into thinking it's butter' stuff.
( K2k6 has a proper job these days, Wed 9 Jul 2008, 12:15, Reply)