Like Griffin moments (here and here). The split seconds when you catch him doing something or giving a look that just melts you. Or hearing his laugh, there is nothing I'd rather listen to.
And there are the other small things like when your husband sneaks off in the morning to get the gallon of milk you'll need before lunch but won't have time to get. And, not only the gallon of milk does he bring, but a yummy berry mocha. He sure does know how to start my day off right.