A Walmart grocery receipt from 2006 is making the rounds online, prompting a fresh wave of sticker shock among shoppers. The receipt shows 79 items totaling just $161.87 — a figure many people say now feels almost impossible for a grocery trip that size. What's happening? According to USA Today, the receipt was recently shared on X by Kylei (@ruledbymercuryy), who said, "I fell to my knees" after finding the record of her mom's old Walmart purch…