so i apply the wax with the round applicator then polish off with a microfibre cloth??
Yep thats right.
when you say you use them for everything, do you have specific ones, ie bug and tar, polish t-cut etc? may have to get a few then
are they machine washable?
Yeah dont use one for everything, have a few set by for specific roles ie polishing, bug and tar, alloys etc.
Yes they are machine washable.
That site i posted is the best for prices on mequiars etc.