If there happens to be anyone who does not have a Kobo account yet, you may be able to get a $5 credit "today" for signing up.
You can sign in with Facebook, Google (Google+, too? I dunno), or register with Kobo with your email addy.
This is contingent upon you getting a popup about it, as I just did, when going to Kobo just now. It wasn't even their homepage.
The URL for Kobo's homepage is, of course,
http://www.kobo.com.