Hanes.com offers some really good deals on underwear, tees, and more for the whole family. Right now if you spend $49 or more, shipping is free. Also if you spend $50 or more, you get 20% off your entire order! You could load up on a lot of great stuff for under $50!
Here are a few speicals I like:
All women's bras $8.99
Men's Boxer briefs on clearance for $1.99
Women's Forward seam pants on clearance for $4.99
Remember to go through Ebates for 4% cash back on your purchase.