Thanks for this feedback, ladies!
I do have -- and love -- the Quickie glue pen, and in some cases I think I will definitely do that. I guess I was hoping to avoid having to pen-trace all the tiny branches and bits of some of these die-cuts (check out Memory Box's Floral Circle!Memory Box
And I agree: Light bulb moment for simply backing a scrap of paper with double-sided tape! No need to Xyron a whole rectangle if I just need , say, a 3 X 3-inch piece. If I didn't already love and own Scor-tape in all widths, I would now.