"What are your house rules"

What rules, if any, do you give yourself when running your franchise. I like to try and keep things realistic even though i could exploit the AI with trades. I play as the Royals so I try and run it like the small market team they are.

Some of my rules are to only trade with sellers if im buying and vice versa. I also wont option a player with more than 5 years service time even though the game neglects this part of the CBA. I also very rarely attempt to force a player through optional waivers if they are out of options. Such players are typically DFA'ed and I will attempt to trade. In short I guess I try and stick to the real CBA. What are some of you guys' house rules?