During my most recent dream, something was happening (I don't remember what) but I started waking up, and for some reason, I thought if I rubbed my hands together I would stay in my dream (I didn't know it was a dream at the time, I just sort of had a feeling it might be), so I did, I rubbed my hands together, but still ended up waking up...

Does rubbing your hands only sustain Lucid Dreams, or can it work in Normal Dreams also?

Here lately, each night towards the end of the dream I usually figure out im dreaming but can never stabalize it quickly enough and I end up waking up, so I figure if I can sustain my normal dream around the time I start to become Lucid, then it should stay like that after I become lucid long enough for me to try and really stabalize it.Would that work, or is it just hopeful thinking on my part?