Would it be in my best interest to accept all these cards?

Hello there, I don't know if you remember me but we had a few correspondences a few weeks back. My credit score turned out to be 670 and you recommended that I establish a bit more credit since all I had on my record was Student Loan, Capital One Card and a Dell Computer Account. Well, low and behold I got accepted to quit a few cards. (Walmart, Target, Chevron, Master Card and Zales) Which leads me to my question, if you don't mind my asking. Would it be in my best interest to accept all these cards? Spend a few bucks on them, pay it off right away and then put the card away? Would this hurt or help my cause of upping my credit score? Since I need more credit experience on my record, should I get as much as I can or just a few more??
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the best thing to do would be keep the master card and chevron card.
I would loose the others.
then I would charge stuf on those cards and pay them off the next month and
the gas car pay extra each month to you have a higher credit limti in 12
months. you must keep the card open for at least 12 months to have a rated trade line to get more good credit
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