Until I am of senior citizen age (I am 32), this will likely be the last home we buy. So my wife and I are trying to "build for the future", incorporating nearly everything we can think of that we would want, that isn't feasible to add later. Things like stonework on the outside, a pool in the backyard, hot tub, those are all things I can add at a later date relatively easily, and for not much more money (and in some cases less) than it would cost now.However, things like radiant barrier roof decking, radiant barrier tyvek, dual pane low-e, argon windows, HomeTeam Slab and Frame Integrated Termite and Pest Control System, 220v in the garage, a dryer vent on the exterior wall so that I can put a couple of portable AC's in the garage and vent the hot air out, bolts in the garage floor for my 2-post lift, copper piping in the garage walls for my air compressor lines for air tools, solar ready (inverters, wiring and panel mount supports already installed so a solar system would literally be plug&play), wiring and bracing for a ceiling fan on the back porch, adding a back door from the 3rd car garage bay to the backyard, there is even going to be a granite seat in the master shower. These are all things I wanted added because they are things we anticipate needing and in the grand scheme, they cost next to nothing to add, and when you figure later on, they would cost a comparable fortune. We added a double stainless undermount sink in the kitchen instead of the standard single sink. We moved the pantry under the stairs (which ordinarily is walled-in, wasted space) and freed up the space where the pantry would have been in the corner of the kitchen, and put in more cabinets. We also selected hand-scraped hardwood-look ceramic tile, instead of real hardwood because we are dog people, and its going to age better, even if I have to have it regrouted every decade. I even planned ahead and made every downstairs doorway at least 36" wide to accommodate for wheelchair access.If we are going to spend the next 3 decades living here, we want it to be everything we have ever wanted, or could ever want. In the end, the only reason I want to have to leave is either A-someone makes me an offer to buy that I can't refuse, or B-we can't get up the stairs anymore. And with the master being downstairs, the latter is really not as much of a concern except that we would be heating and cooling a large portion of the house that we couldn't even use. But, as they say, cross that bridge when you come to it. It is hopefully a long way off.It is our hope that we can live here for the next 30+ years, raise a family, send our children to the school that's 200 yards down the street.