In this era, we look at photos of ourselves constantly...because of Facebook. 

And because of that, plastic surgery keeps going up . . . it was up 2% last year, even with this crappy economy. 

A plastic surgeon in New York says: "People will come in and say, 'I saw myself in the mirror, but I didn't really notice it until I saw myself on Facebook.'"

Here's a list of some of the most popular procedures and how much they cost. . .

--Microdermabrasion, $141.

--Laser hair removal, $358.

--Botox, $365.

--Chin augmentation, $1,851.

--Eyelid surgery, $2,741.

--Liposuction, $2,859.

--Breast augmentation, $4,286.

--Tummy tuck, $5,279.

--Facelift, $6,426.

(Yahoo Finance)

Remember when crazy Heidi got all of her plastic surgery??