Something small. The question is what? What little bit of time can you carve out of your day and what would you do with that time? That is the question that needs a practical answer. So make a list. In your journal. Make a list of everything that you can think of from a trip around the world to 30 consecutive minutes with a good book or your journal.
Then whittle down the list to what works for you. Don't steal a minute here and there and think it's self-care. That's what my dad used to call "nickel and dime-in' it." Give yourself the whole danged dollar. And please! share your ideas in the comments. No idea too big or too small. Make a bunch of photocopies of your hand and glue them in your journal What message will you put there?
And I apologize for my slow response in replying to comments. Today is the day!
In other news and under the label "self-care," I made four cloth napkins using Moda's toweling by the yard which I tripped over here about four months ago whilst drooling over the Cosmo embroidery thread. The toweling fabric is soft and heavy. Hemmed on two sides, all you need do is cut it and hem the other two sides. The whole project took about 40 minutes. These would make dandy shower gifts, house-warming gifts or hostess gifts wrapped around your potluck entry.
More here and here (lots more!). I'll let you know about service when I place an order. And I will do that. My kitchen towels are a big disgrace and I'm disgruntled at the prices for the cr*p at stores. Getting crotchety, aren't I?
Ahem. Go make your list and I will too.
PS - this is posted in Taming the Critic. It is the critic we are addressing when we ignore ourselves and nurture all those around us. IMHO, natch.