In those bdsm tests, "rope bunny" often shows up near the top, yet a surprising number of subs seem not to actually have experienced being bound in rope.
Maybe that's partly because of a shortage of experienced riggers, maybe partly because rope work takes more time and effort than some Doms are willing to expend.
Still, mastering even a few basic rope restraints can do wonders for your sub, and maybe for your dynamic if it is getting too routine.
Why?
Consider that a good bit of D/s is symbolic. Your sub allows being cuffed as a physical statement of her (or his) wanting to pass control in a power exchange. She isn't just saying she gives her Dom control--she actually does, by accepting and being bound by restraints.
Now comes rope.
Here it isn't just wrists and ankles being restrained -- it can be the entire body. Yes, it takes time, but it might surprise how a sub can crave that slow build as each wrap, each knot, further and further limits ALL her mobility. And the feeling of ropework being done to her--the intimacy of her rigger touching, adjusting, considering, all the while the sub feels more and more an object being used for his (and her) pleasure.
Ropework scares off some Doms because of its perceived artistic complexity. What is "shibari" anyway? All that Japanese fussiness. And then there's suspension ropework, adding dangers of potential injury to the mix, if not done expertly. So, for many Doms: No Thanks.
And that's a shame.
Talk to your sub. It might surprise how eager and curious she might be to experience some rope restraints. I am certainly only a rank amateur with rope, but I can make a rope thong, or a rope bra, or immovable rope wrist restraints, each of which my sub craves, and loves, sepecially if the rope is red and made of cotton...
Yours might be equally enthusiastic.