I've always thought Kant formulated just one categorical imperative, but actually he articulated one imperative in three different formulations. I find all three, and in particular their progression, incredibly appealing, especially in light of our present shift to a secular and plural society.
"Act only on that maxim which I can at the same time will as a universal law."
So act as to treat humanity, whether in my own self or in that of another, always as an end, and never as a means only."
"Every rational being must so act as if s/he were by their maxims in every case a legislating member of the universal kingdom of ends."
Try it out. Test these against any number of Bright Shiny Objects of the present moment, and see how they stand up.