Although I'm registered with an account at MUA, I only joined about two months ago and haven't ever done anything there other than lurk, so I'm pretty clueless about how their whole swapping thing works. Thanks for the tip -- I'll try to get in touch with that person and see if we can work something out.
ETA: I was just at CVS, and this week they have some ridiculous deals going on with their cosmetics -- spend $10 on Physician's Formula products and get $6 in reward bucks back. They also have ones going for L'Oreal and Cover Girl, but the reward dollars for those are, IIRC, $3. MiniCyn likes the PF bronzer, which is $11.99, so I got her that and with the reward bucks coupon on the purchase receipt, it ended up costing $5.99. Not a bad deal at all.