Run the new wheels through the winter. Wash the entire bike more often. Lube nipples once a year when you are checking wheel true, or ask you shop to do it if you have it in for a tune.

Stainless spokes, brass nipples, stainless eyelets at the rim make for as good a winter wheel as you could hope for, aside from a sacrificial winter wheelset. Hopefully the builder greased the nipple seats before assembly...