I wish there was a way to see what the current bid on an auction is, before posting to my facebook that I'm bidding. I just did this, only to find out that I don't even have enough coins anyway.
The other thought is, being able to fill a cart with rewards and then checking out. I redeemed some coins for 2 samples on the same day. You guys paid almost $1 each, and shipped them separately. It would save you a lot by doing one shipment to a member.

Thanks :)