I just got this email from The Mini Social (Another daily deal site)
One week only refer 5 friends and get a $20 credit to your account when they become members.
There is no limit to the number of credits you can earn. Plus when one person makes an order you get an additional $10 credit.
I'm guessing the 5 people do not need to make a purchase so this is a nice way to get a $20 credit effortlessly. Sign up to Mini Social here.
There's a lot of cute things to buy with your $20 credit!
They have a $15 and under section