I don't know if this qualifies as being part of the low buy team, but as of late I've limited to buy only one up to four things from a few of the MAC collections.
Items bought so far:
Fantasy of Flowers: 1 lipstick (Dreaming Dahlia) and 1 MSF* (Perfect Topping) *my first MSF
By Request: 2 lipsticks (Pink Poodle and Hoop) and 1 lip gloss (Pink Poodle)
Playland: 2 lipsticks (Sweet Experience and Toying Around) and 2 lip glosses (Lots of Laughs* and Live it Up) *New favorite lip gloss
Proenza Schouler: 2 lipsticks (Pinkfringe and Mangrove), 2 blushes (Ocean City and Sunset Beach), and a free lip lip liner (High Energy) because I was given the wrong item
Maleficent: 1 beauty powder (Natural)
1 Patentpolish pencil (Go For Girlie)
1 Nail Polish and I'm seriously burned out in the np department (Orly Cheeky)
1 OCC liptar (Pool Boy)
1 Maybelline lipstick (975 Ravishing Rose at discount price)
2 Revlon lipsticks (Snow Peach and Jungle Peach at discount price)
I splurged a little too much on Guerlain though, mostly from the Spring collection. I bought the Crazy Paris rouge automatiques (Reflex and Illusion), the Blossom ones (Attrape-Coeur and Insolence), Les Tendres eyeshadow quad, and the eyebrow kit. I'm planning to buy the Nahema gloss and maybe Tonka Imperiale RA.
Items on heavy rotation:
Illamasqua Over lipstick
Dreaming Dahlia lipstick
Orly Cheeky, Cotton Candy, and Artificial Sweetener nail polishes
Revlon Sweetheart Kissable
Revlon Unapologetic Matte Kissable
Guerlain Champs-Elysees Rouge Automatique (it's a sample size)
Both of the Archie's Girls Pearlmattes
Sunset Beach blush (I use a wee bit with a soft brush but the item is basically and endless pit for me)
About to finish:
Guerlain Pampelune Shine Automatique
Too Faced Juicy Melon La Creme lipstick
MAC Hue lipstick
CK One Summer 2012 perfume *I can't wait to be done with that one
I want to get rid of a bunch of lipsticks (most of them are nudes) and nail polishes (most are China Glaze and LE) that I don't want/use anymore in order to make space. Not even one of my sisters, who is a bigger nail polish enthusiast than me, doesn't want them because she thinks they're not her type of colors.