There are some great coupons out there that can get you some cheap or FREE plus-size clothes!
Go to Coupons section on Target's site, and look under Apparel. There you should find a coupon for $3 off a Plus-Size Item at Target! Pair it with a clearance item, and you could score some free clothes! Make sure you print 2!
Check your May Edition of All You magazine. You will find a $5 off coupon for JMS (Just My Size) apparel.
You can find JMS clothes at Walmart. You can find some items as low as $3! That gives you overage! You can pocket that overage, or use the overage to buy ANOTHER copy of All You (which is on sale for $1.88 this month) and get ANOTHER coupon!