One major rules redundancy in Pathfinder (which is inherited from 3rd edition), is making more than one attack during combat. Three rules systems operate simultaneously: two-weapon fighting, natural attacks (including secondary natural attacks), and multiple attacks. These rules are scattered throughout the combat chapter, each confusing the next.
While these rules can be understood, they present a lot of exceptions and alternate circumstances. The fewer circumstances you have to think about during the game--the less intrusive that the rules are--the more fun the game will be. Therefore, I propose merging the concept of off-hand attack with the secondary natural attack. These basics of this are:
- As a full round action, a character may make as many primary and secondary attacks as one's level, feats, and race/species may allow.
- A secondary attack must be made with a light weapon (unarmed strikes and natural attacks count as light weapons)
- A secondary attack is made at -5 to the attack roll; and only one-half of a character's strength modifier (if any, rounded down) applies to damage.