When you find yourself with a bowl of limes there is only one thing to be done - mojitos. Lets call margaritas plan B.
There are tons of recipes for mojitos by the glass but no definitive ratios for a pitcher. The following mixture produced formidable and refreshing results.
2 cups of fresh lime juice (about 30 limes or so)
3 cups of simple syrup (water heated up with sugar to dissolve it, Klatch version is not too sweet but it is all the matter of taste)
4 cups of light rum, like Bacardi
Fresh mint muddled with a few spoons of sugar
Mix it, cool it, and add a splash of seltzer to top off your glass. Bonus tip: hang on to gallon glass jugs like ones that apple cider comes in, with the help of a funnel those work like a dream for mojitos storage and transport.