We built our dogs a home under our stairs in the breakfast/kitchen area after finding inspiration from Pinterest.
DIY pet bed... so really you just fold a blanket in half, fringe the edges on every side except the fold, make long enough to closely tie the knots together, stuff with anything you wish. old crib mattress, couch cushion, old pillows... my gosh this doesnt even have to be a pet bed! - Click image to find more DIY & Crafts Pinterest pins
DIY natural flea repellent for animals: equal parts apple cider vinegar and water, 15 drops essential oil of your choice (eucalyptus, lavender, lemongrass, etc.), one drop castille soap. Spray onto your hand and rub into their coat. It's fine if they ingest it, the fleas won't like the taste of their blood.