No, to knock down dust in the darkroom before printing the negative. "An ounce of prevention is worth a pound of cure." A clean printing environment is really a time saver when it comes to spotting.
I'll add that it is easier to clean a negative than to spot. I examine my test prints for dust that would need spotting. If I see something, I'll remove the negative from the carrier and clean again (and again, as needed) till the dust is gone. I'll even trash a good print with a dust spot if I can clean then neg and make another. It's almost always a time saver.
That said, no matter how we try, it seems there are always spots that need spotting, especially if the defect is on the negative itself. So spotting sessions are a necessary part of the workflow.
@ the OP: Spottone is no longer made, but often available on the used marked (eBay, etc.). Marshalls still makes spotting colors. You can also make your own from India ink and gum Arabic and a bit of water. Ink blocks for calligraphy work too.
Oh, to get better at spotting fast: practice, practice, practice on scrap prints. You'll figure it out quickly.
Best,
Doremus