It provides Sprint, Verizon, T-Mobile, various retailers and other organizations with postage-paid boxes.

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DVDs are delivered free to subscribers by first class mail, with a postage-paid return envelope, from 58 distribution centers.

ENGADGET: Netflix notches 2 billionth delivery with a Blu-ray disc HD

Rather than letting them build up in your wallet or some envelope like I do, Shoeboxed lets you send receipts, business cards and documents to them via postage-paid envelopes or camera-equipped smartphone for a really low monthly fee.

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Consumers select the titles they want to upgrade on DVD2Blu.com, mail in their standard DVDs with pre-paid postage and a short time later receive copies of the same film on Blu-ray Disc.

ENGADGET: Warner's DVD2Blu trade-up program gets bigger, cheaper (maybe)