The living room, where the Martinezes spend most of their time, is the largest room in the home. The sofa, which is also a pull-out bed, features a storage compartment in its base and cost $600. An accordion rack ($30) is a convenient place to hang accessories and plants.  Photo 3 of 13 in Budget Breakdown: Two Travel Therapists Build a Tiny Home-on-Wheels for $24K

Budget Breakdown: Two Travel Therapists Build a Tiny Home-on-Wheels for $24K

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The living room, where the Martinezes spend most of their time, is the largest room in the home. The sofa, which is also a pull-out bed, features a storage compartment in its base and cost $600. An accordion rack ($30) is a convenient place to hang accessories and plants.