Add a specialized GPS system to the aircraft. Pilots used to fly using "pilotage" and chart navigation. Today these skills are still used but have become rather passe in light of the sophisticated GPS systems. Aviation GPS systems vary in functions and size and are made for Instrument Flight Rules and Visual Flight Rules (IFR and VFR).
Install a modern "glass cockpit" to your aircraft. Glass cockpits are not what the name suggests. A glass cockpit is a full electronic (often touch-screen) set of gauges and instruments. These glass cockpits replace the old "steam gauge" style of instruments in the cockpit and make flying a breeze.
Go with custom landing gear for your aircraft. If you live on a lake, ocean, or other body of water, consider installing pontoon floats to the aircraft and never worry about having to land in a crosswind again. Flying and landing on water lets you determine the length of the runway and landing strip, alleviating the dreaded crosswind landings. Amphibious floats have retractable wheels so your craft has the ability to land both on land and water. Or, if you live in a mountainous or glacier-rich region, have a skis landing gear installed on the plane.
Get your aircraft painted the way you like it. Custom paint jobs include everything from logos and art work to simple color patterns of your choosing.
Turn your airplane into a "flying RV." If you are one of the fortunate few who own a larger aircraft, consider gutting out the cabin and installing a galley, bathroom (head), sleeping quarters and storage closets, and then go live the dream. Fly around the world with a flying home.