Together Forever

In a minute-and-a-half, this animated story encompasses the themes of love, commitment, aging, fear of the unknown, and the simple pleasures of life. One Twitter user said,

Why does this commercial have a better plot than half of the shows y’all be watching?

The company that uses it has a slew of other stories, which you'll find linked at Metafilter. Along the way, you might even find out what they're trying to sell you.