Lemon is rich in Vitamin C. Yes, we all know that...
But how many of us would actually buy a lemon frequently unless we have a lemon recipe to cook? Furthermore, there are signs at supermarkets like NTUC that would tempt us to buy more lemons than we need for instance "1 for $0.40. 5 for $1.80". Of course the latter is a better deal, well to me.
But what happens next after I use up 1 of the 5 lemons for a "Fried Chicken in Lemon Sauce" (FCILS) dish? Maybe make a flask of lemonade with 2 lemons (which I don't really fancy but have to finish drinking up in 2 days) and save the other 2 for later use (and nobody knows when I'll make FCILS again).
Perhaps some of you who are reading this already know what to do with all your lemons. But there are still many others who want a good $ deal yet have no idea at all.