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McMansions may be making a comeback in the U.S., but it's nice to see the tiny-house movement is still going strong.

Tiny-home singles even have their own dating site, Tinyhousedating.com. The site launched two weeks ago and already has more than 400 members, according to founder Kai Rostcheck.

"It's hard to meet other people who are making that same [lifestyle] choice," Rostcheck told Yahoo Finance.

But is it really possible to thrive as a couple in such a, well, tiny space? What do you do when the inevitable argument heats up and you've only got 100 square feet of breathing room? How do you pare down not only your life but your partner's life to fit in a home no bigger than a tool shed?

We caught up with Rhode Island couple Jess Belhumeur, 28, and Dan Sullivan, 26, who chronicle their tiny-home lifestyle on their blog, Living In A Tiny House. In January they completed their 128-square-foot abode, which they built and furnished for a mere $10,000.

"I had already owned a home before this and I realized that I only used two rooms — the kitchen and the living room," Jess says. "I felt ridiculous. I was in a stressful financial situation and I wasn't even making use of the house I had."

With $45,000 worth of student loan debt to contend with, Jess knew buying a pre-constructed home was out of the question (even tiny homes can cost up to $40,000). She works full-time in marketing, while Dan attends college full-time and supplements their income with part-time jobs. Buying a tiny home off the market was simply out of the question.

"For people like me and Dan, having our own space was not as important as having freedom from debt and feeling like we could breathe," Jess says. If they could build a tiny home for less than $15,000 or so, they could live rent-free for as long as it took to pay down their debt and save up for something larger down the road.

Here's how they built their pint-sized dream home:

Hiring a professional to design their layout would have cost them $3,000 alone. So they took the DIY approach, designing their home themselves with free software from Sketchup.com.

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Any home needs a good foundation. They started with a $1,500 trailer bed, which they found on Craigslist for $4,500 less than it would have cost new.

Building on a trailer bed allowed them to sidestep building codes that would have made the process difficult and costly. Basically, tiny homes on wheels are treated with the same flexibility as mobile homes.

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