I agree that it can become easy to take those actions for granted, which is a shame. They are the "real" signs that someone cares for you - that they do something to keep you safe and healthy.
If I'm hungry my boyfriend will stop what he's doing and spend an hour in the kitchen and make whatever it is I'm craving, and bring it out to me. That's a substantial investment of time and effort just for a meal I'll consume in say 15 minutes. And then it's gone! I try to always show how much I appreciate that.
I'm so backlogged with work that I'm lucky to be able to go with him to his monthly band gigs, and "give up" those 4-5 hours to support him. And that's about the extent of what I do for him, I think. Besides cleaning the house, which is a joint support task.