You could do as my wife does - Packs me a pair of shorts, a couple of pairs of pants and a single shoe. The rest of the two cases are filled with numerous dresses, skirts, bikinis, underwear, endless pairs of sandals, heels, toiletries.....
I usually then get it in the neck when I add my tiny contact lens case at the last minute - Funily enough it is always "my stuff" that will make the cases over-weight!!!