I'll start. This isn't a WOW! FANTASTIC IDEA! by no means. But, it is something that you can put into your bag of tricks and use when the situation presents itself.
Conan Combat Tip to avoid being Flat-Footed.
A human, not encumbered with armor or gear, can move with a Speed of 30. Take advantage of that. He can move 30 feet in a 6 second combat round and still attack? Well, then, in situations where appropriate, consider making a ranged weapon attack from a distance of at least 31 feet.
That way, if you lose the nish roll and are considered flat-footed before you can make your ranged attack, the enemy can't get to you and attack you while you are flat-footed unless he's got ranged weapons, too.
It doesnt matter if you hit! It doesn't even matter if you get to make your attack!
The simple act of saying, "My character will fire his bow at..." when you are 31+ feet from your nearest enemy, is enough. The GM will call for initiative throws, and even if you lose the nish throw, the throw is made, and your enemy can't get to you until the second round when you are not flat-footed.
For this reason, carry something that you can throw at the enemy. Axes, spears, and javelins...bow, or crossbow....throwing knife...whatever. The main idea here is: Cause Inititiave to be rolled when you are 31+ feet away from your nearest target.
If you like this idea, you may consider some of the Ranged Wepon Feats: Far Shot; Point Blank Shot; Precise Shot; Ranged Finesse; Rapid Shot; and Mounted Archery.