Another Source for Selling or Buying Cardboard is Box Cycle: (San Francisco, CA) This is a fairly new company- but it looks like you just post your boxes on their forum to find the closest location for boxes, saving you time and gas.
Here’s what they say:
“BoxCycle was created to make the environmentally superior option of reusing shipping and moving boxes practical, convenient, and worthwhile.
Every day people purchase new shipping and moving boxes at a significant expense. While it is possible to find low cost, or even free, used boxes, the process is often time consuming, embarrassing, and full of frustration and uncertainty. With BoxCycle, buyers instantly see willing sellers in their area including sellers’ distance and approximate location, box inventory, and hours. Buyers reserve their boxes by arranging a pickup appointment and paying for their purchase online. BoxCycle not only makes the transaction simple, certain, and inexpensive, but also more convenient. By locating sellers close to them, buyers can pickup their boxes the same day without long drives or costs and delays of delivery.
Retailers receive daily shipments in boxes that they then spend time and money getting rid of. While many retailers are happy to provide used boxes to others, they don’t have time to look for interested people and do not want to be distracted from their core business. Recyclers, moving companies, and box manufacturers accept pennies for recycling perfectly good boxes instead of much higher prices people are willing to pay because these sellers are not setup to deal directly with consumers. BoxCycle shields sellers from frequent communication, broken appointments, payment collection, and other issues that makes dealing with individual consumers difficult. At the same time, BoxCycle makes it easy for sellers to list their boxes and find buyers.
BoxCycle makes listing, buying, and selling used boxes simple and efficient while providing buyers with lower prices and sellers with higher returns. There are no upfront fees; BoxCycle only makes money after successful sales by deducting a commission before remitting proceeds to the seller.”