Business 2.0 has a cool little write-up and gallery of Netflix envelopes evolving over the years… Story here, pictures here.

Years of experimentation went into creating the perfect DVD envelope. In 1999, Netflix started out with a heavy cardboard mailer. With only 100,000 subscribers, costs weren’t a concern yet. Then the company experimented with plastic envelopes, which proved not to be recyclable, and padding, which added too much to postage costs. Both top-loading and side-loading envelopes made an appearance.

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