Cleaning laser lens; good idea?

All the Techs I've chatted with don't use CD lens cleaners,
or camera lens cleaners(alchohol of any sort.
what they use is a Q TIP WITH WARM WATER(Distilled preferably)
I've used this method a couple of times over the years and
NO PROBLEMS.

leave it alone unless you have problems.
The old saw: "If it ain't broke don't fix it!" applies.
When you can just as easily make it WORSE than better, better to do nothing!
My way of being certain that the lens stays clean is to use a clean cosmetic blush brush on every silver disc (CD DVD) I put in. The dust stays out of the player, by keeping it OFF the discs.

Is that brush made from organic or synthetic bristles E?Thanks,Bob