I was in Walmart (gasp, I know) the other day and a bunch of their pool supplies are going on sale!!! I always look (nope, we don't have a pool, but I keep hoping that someday....) and found those little floating things that go in the pool at night :
Before those, bath time was boring:
NOW IT'S A BLAST AND AND AND AND AND....I can REUSE them many many many many times!!!