If vim doesn't have clipboard support enabled, then this is one way to copy and paste. The vim packages in the Fedora repositories are configured such that vim doesn't have clipboard support, but gvim does.

Not GP, but for me it's simply that I remember it (or rather don't need to, because it's just using general purpose mechanisms that I already remember).

But now you've said it maybe I'll remember if I need it today, and.. well I'll see.