Do it because you love and care about them. Not for reciprocation or out of guilt or obligation. Just because you want to make a tiny part of their life easier or better.
– Choose your clothing the night before so you don’t wake them in the morning with opening and closing doors and drawers and lights.
– Save the last brownie for them.
– Change the lightbulb as soon as you notice it has burned out.
– Entertain the kids so your spouse can wake up just a bit later.