Need assistance filling out those pesky tax forms?  Just head to your friendly neighborhood Walmart.  More than 3,000 of the discount chain's stores began offering preparation of simple tax papers as a courtesy to its customers beginning today. Kiosks to help you with your 1040EZ forms have been erected at Walmarts through a partnership with H&R Block Inc. and Jackson-Hewitt Tax Service Inc..  The service is free, and those who take advantage will be afforded the ability to have their IRS refunds sent via direct deposit, standard check, or prepaid card.