If you find yourself with an excess of empty and clean (you can keep the nasty, grungy ones) Vine Park growlers, bring them back for $5 Vine Park Bucks each. While Vine Park Bucks have no cash value they can be used towards the cost of anything they sell, which would include the just-released-yesterday Capital Hill Pilsner.
Of course, right after I recycled my growlers. I had four for various reasons, and before you couldn’t do anything but get a discount on a refill. I didn’t want to lug a bunch around. Good to see they changed this.