Small hint about the full account number required to set up online banking - in fact you CAN register in online banking BEFORE you actually get the card.
If you applied online, then the card is already linked to you account, but you can see only last 4 digits of the number.
If you somehow have access to your credit report (I did it all the time with EX, but I suppose that would work with all other CRAs), then in a couple of days after account opening you will see a new tradeline reporting. For security purposes reports don't show the whole card number, but first ... 12 digits
I suppose there's no need to explain how to add 1+1? :-)
In case of Walmart just be sure not to activate the card before you actually get it (the first time you sign in to the system, it will suggest you to activate your card, just say no).
I've done it already with several GE cards (Walmart, Amazon) and it worked perfectly. Good trick for those impatient like I am :-)
In my wallet now: Amex PRG NPSL, Amex BCE $6k, CSP $6k, Chase United ME $5k, Citi Dividend $4.5k, Discover It $4k and a handful of other cards...
TU March 2013 - 733; April 2013 - 728June 2013 - 713(keep falling down after tons of recent inquiries and carrying some (well... huge) balance)
. I guess having about two GE accounts help, Discount Tire, and Amazon. Now three accounts with Wal Mart. 
Starting Score: EQ 717 EX 724 TU 736
