Keeping residential fridge doors closed during travel

We have the same Residential French Door Bottom Freezer and in our 2 years of travel I've yet to have to doors come open, and there's no locks on them. All I do is load it so that things won't shift around, and yes the door are full of mostly heavy Item, i.e. glass jars, wine bottles, etc. The only thing is I DON"T take corners like an F-1 driver.