Extended Shelf Life for: Limes
First, I peeled and juiced about half or 2/3's of the limes, poured the juice into ice trays, threw them in the freezer then popped the little sucker's out of their trays, transferred to a Ziploc bag and now I have about 20 tablespoons of lime juice ready and waiting to be added to salsa, soups, smoothies, margaritas, whatever the case may be.
Second, I took about a bag worth of limes, quartered them (but didn't cut all the way through), sprinkled with some salt (coarse sea salt or canning salt to be exact). Press the limes down into the jar until the jar is full and leave overnight so the limes have a chance to extract some juice. In the morning, top the jar off with fresh lime juice and store in the pantry until you have a need for some salty lime juice to flavor any of the aforementioned items or whatever you may want to add the zesty flavor of lime.