You can divide almost any type of property into a time-share (a type of fractional ownership). Most popular among these, of course, is the condominium time-share arrangement. Private jets are also sold as time-shares (betcha didn't know that!). What that means, just in case you didn't already know, is that the time-share owner has the right to use the property for a certain mount of time, for example two weeks a year. Since this time-share interest can be bought, you can also sell it when you get tired of it. You can build up equity in it, and if...