I must confess that I am on the beginning-side of learning how to manage a kitchen. Leftovers, from time to time, are left for much (much) too long, and I seemingly "run out" of plastic storage containers only to find them buried in the bowels of the fridge.
Don't, I beg of you, for the safety of your sinuses and those of your family, leave the wonderful Lentil Salad that I wrote about in my March 20th, 2011 post Chop, Chop, Yum! in the fridge for three weeks. Yipes!!