Amazon offers free shipping on foling treadmills. Other online companies that offer free shipping on folding treadmills are Modell's, Smooth Fitness, and CSN Stores.
Most workout equipment stores have treadmills for sale. Buyers can try it in the store and purchase, or Amazon has a lot of treadmills for sale and with free shipping to the door too.
Spicylingerie offers lingerie with free shipping.
I have found that it is difficult to find anywhere that will offer completely free shipping. I did find that Target offers free shipping, and Overstock offers free shipping on your first order although some conditions do apply.
You can purchase lifespan treadmills on amazon.com as well as sears, Wal-Mart and Kmart. They do offer free shipping so it will not be expensive to ship.
Samjam Wheelsnext.com offers free shipping on its wheels and tires.
Amazon has a shoe site that offers free overnight shipping and returns.
There are many sites that offer free shipping for swing sets. It really depends on what size swing set you are wanting. However, walmart.com offers free shipping for any size.
Vitamins Direct offers free shipping for purchases meeting a certain criteria. Purchases over $50 receive free shipping.
Office max currently offers free shipping on all orders that are atleast $50. If office furniture can be found on Amazon, some sellers will offer free shipping with these as well sometimes.
BoxGiver offers free shipping supplies that people give away. Hope that helps!
Amazon.com offers free two day shipping for a Garmin GPS. Bestbuy.com has free shipping for a Garmin GPS also. Rei.com and altrec.com have free shipping for a Garmin GPS as well.
The USPS offers shipping boxes for it's customers. These are available for free on their website.