So coming from a long time at a regional and not being really aggressive with long term planning, this is the first year I am going to be maxing out personal 401K contributions at $18,500 + 16% from the company.

We plan to put 100% of my flying income into retiring early and living solely off the spouses income. She also maxes out her 401K contributions. What would the financial "guru's" here recommend putting the rest into? Real estate rentals? S&P Index fund? Both?

We both put money into the stock market outside of our 401K, but have been looking into real estate as our next move. Just starting to read tons of books on the subject but some of you guys have years of a head start on me so you could probably provide some good insight.

*note, clearly not just basing decisions off a pilot board, but nice to hear ideas and what everyone else is doing.