[Spicymoose]

I routinely 3-bet KQo, and might even 3-bet KJ against a really loose aggressive opponent.

As for cold calling, I think I only do it when there has been a limper, and then a raise, or a raise, and at least one cold caller. Then, if the blinds are loose, I might cold call with such hands as JTs, QTs, 55-77 (77 reraise if it went limp, raise), A7s, A8s. Anything higher I probably reraise. It depends on condititons, but this might be somewhat standard for me.