Yep, I definitely have a "Stash" (just like any other farm, I suppose) and a collection of barrels is definitely part of my stash. I'd post a picture but it's the messy part of the property, as you can imagine.
Rainwater catchment is legal and encouraged in Texas. I have some catching systems here but nothing elaborate (yet). We're building a barn soon and I'll have a full catchment system on it. I have big plans in that regard.