"The "rules" say no weapons, but knives are okay so long as they're legal in California. That means no switch-blades. Spring-assist is fine."
"Waiting for someone in a fitting room? Have a seat. There are stools near every fitting area."
"Buying a new battery? Bring your old one to avoid a core charge (~$15)."
"If you're taking a bike on the train attach a destination tag to it. Conductors sometimes have them, but you can always write/call Caltrain an they'll send some to you."
"Don't try to make directions to your cage, things move around."