What I'll do is move further to the right when preparing to make a right turn in order to prevent cyclists from passing on the right. As a cyclist, I won't pass other vehicles on the right if there's a possibility that they could make a right turn, or a car from the opposite direction could make a left through a gap of stopped traffic, or a car approaching on the intersecting road on my right may not see me before pulling out.
> i'm trying to be safety conscious and always assume a driver in a dangerous spot hasn't seen me; this is impossible for suddenly opening car doors.
You can avoid opening car doors by riding at least 6 feet away from parked cars. I ignore door zine bike lanes and just ride in the center of the rightmost general purpose lane. Faster traffic can change lanes to pass me.
for example, i do a lot more shoulder checks to the right. i'm a very fast cyclist and sometimes overtake drivers on the right (when riding in the bike lane). some drivers can't fathom a cyclist being faster than them.
the other thing is mirror checks when opening the car door. i even started to reprimand other drivers or passengers (depending on my role) for not checking. even though i'm riding fast i'm trying to be safety conscious and always assume a driver in a dangerous spot hasn't seen me; this is impossible for suddenly opening car doors.