Do you want to show that you care, no matter the occasion? Why not learn how to make an encouragement jar?
As for decoration, why go through the trouble of painting the jar lid? Simply use a cupcake liner! I think the jar would look neater this way.
Instead of painting the rest of the jar, why not just tie a very pretty ribbon around it?
Think of things to write down on little strips of paper for your encouragement jar that people take fo rgranted. Write for example, "I am going to cook you dinner every day", "I am going to do the dishes every day", etc. Again, the little things...
This would be a very thoughtful gift to give yet inexpensive.
Have a wonderful time creating!