For valentine's or for any day that really matters, get a large glass jar, scrub it clean, and paint the jar with flowers, hearts, sunshine, clouds, etc.
Then get a bunch of "fancy" doodle pads and begin writing reasons & reminders of how & why you love your husband,wife, kids, boyfriend, girlfriend. It doesn't stop here – start collecting little poems, quotes, and song lyrics to add to the pot.
When someone is having a rough day they can open the lid and reach in for a "boost". This jar was easy to make and VERY personal, and can be enjoyed year around. Collect stuff for the jar as well!