Seth Meyers has new material for his act now that he’s married.

The former “SNL” star entertained the Society of Memorial Sloan Kettering Cancer Center’s Spring Ball by taking comic aim at wedded bliss with his wife, Alexi, who “took it all in very good stride,” a spy said.

Meyers quipped that as a bachelor, you always know where to find your belt: “On the floor.” But he now has to search in a “national archive” to find one.

He also said single guys use “one towel for everything,” but now, “we have towels we only look at.”