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With everybody emailing, texting and messaging these days, instead of buying stamps and sending letters, what’s a poor postal service to do to make up the lost revenue?

Here’s an out-of-the-envelope idea: mow lawns.

Starting May 17, if you live in Finland, you can have a mail carrier cut your grass for a fee.

The postal workers themselves came up with the idea, according to Anu Punola, the director of Posti, Finland’s postal service. “We believe many customers will be happy to outsource lawn mowing when we make it convenient for them to do so,” Ms. Punola said in a recent statement announcing the program.