I agree with the whole 'gauging' thing is stupid, but only if you don't consider the consequences. I have my ears a tiny bit stretched (10 gauge, which is 2.4mm I think) and I used to have my septum piercing stretched to 8 gauge which is 3mm. Note: Septum piercing is the middle part of your nose in case you didn't know.
I also have five piercings on one ear (three lobes, industrial & tragus), four on the other (three lobes & one normal cartilage piercing), nose (nostril), septum, tongue frenulum, and three piercings on my belly button.
I love piercings so long as you know you're going to be left with scars.
If you don't know what these piercings are, I could post pictures.