The solution is to use that big, creative brain of yours to take things from inside and put them to work outside. Most of the time only minor adjustments can turn them into hardy outdoor residents, and it will give your patio or garden a unique look that can only come from thinking outside the garden department.
Don't forget about drainage - most plants are susceptible to root rot unless there is a way for excess water to leave the system. A drill with a 1/2-inch bit takes care of this fairly quickly - drill one hole for every four inches of surface area. Keep the holes about a half-inch wide though, or they can become clogged with dirt and debris.
To make sure your furniture lasts outside, take a few precautions: cover all upholstered areas with outdoor fabric that resists moisture, mildew and mold. This fabric isn't necessarily plastic, either - it's sold under several brands, but they all feel like canvas or a heavy cotton duck, and they are available in a rainbow of colors and prints.
Give all wood furniture a coat of varnish, or rub bare wood with tung oil to help protect against moisture. Metal that's already powder coated will be fine, but keep bare metal well-oiled to prevent rust. Plastic furniture will be fine.
Even mass-produced bargain-bin sculptural art takes on a whole new life when given a place of honor amidst the impatiens and azaleas. The key is to be selective, and place items carefully. Don't clutter up your yard - you should not be able to see every single piece from any one vantage point.
See? You didn't even realize you had all this stuff just hanging around. And with just the smallest bit of work, you now have the most adorable little yard on the block.