cosmetic bags inside purse?

Hello! I was wondering what brand of cosmetic bags or purse organizers you all use inside your bags! I need several smaller pouches to hold makeup and essentials for my kids, so the inside of my bags don't get messed up. I was looking at LeSportsac, but wasn't sure if there are others I should be considering! Thanks!
 
I love my Lesportsac. Mine is a boxy shape that holds a lot despite its small size, and it has an outer holder for tissues so you can get one in a hurry.
 
I have a couple of nice Clinique bags I got as a 'gift with purchase' but you can pick them up pretty cheaply on Ebay, and they're waterproof.

Cath Kidston do lovely oilcloth ones which are gorgeous and very practical.
 
another vote for Le Sportsac....wear like iron, put in washer and dryer
I like the triple zip and another style I have with multiple compartments; I put lipstick, liner and brush in one compartment and items I reach for less often in a larger compartment.