Wait. You can't carry openly on your own property right now? Gunshop employees have been doing this for generations (long before the Concealed-Carry laws of the 90's were even passed).
Like tRdoc said, there is a difference between "in" and "on" your property. Currently you can carry however you want in your property but not on your property.
There is a list of about 7 reasons you can legally open carry and I doubt you are having a parade or practicing for a military event on your property. Which brings us basically down to hunting and target shooting. If you live within city limits, most cities have a law against discharging a firearm within city limits, since it would be illegal to discharge a firearm in city limits, that means it would be illegal to hunt or target shoot on your property. Therefore you could not claim one of those exemptions.
This would clear that up and allow you to open carry on your property without a license.