I'll give you five bucks for your tagline!
Then again, maybe I don't. Have you ever reflected on the fact that it's the Catholics, perhaps more than any other Christian group, who believe in sanctifying all of time? You can call us Sunday worshippers, and we certainly believe that that Sunday Mass is not optional, but most Catholic parishes have Mass every day, and all Catholics are encouraged to hear Mass every day. That includes Saturday.
Not to mention the sanctification of time by the celebration of the Divine Office (aka the "Liturgy of the Hours").
Christians aren't called to be just Sunday worshippers. They aren't called to be just Saturday worshippers, either. "Pray constantly," Christ said.