Waves Mastering Plugin [upd] -

This is where you get commercial level.

Bypass the EQ often. If the mix is already great, don't add EQ just for the sake of it. waves mastering plugin

Before touching a plugin, understand the mission: This is where you get commercial level

If you can only buy a few:

Overuse kills punch. Aim for 1-3 dB gain reduction per band maximum. waves mastering plugin