All the time. To the point of if I don’t use it I really kinda have a “Shit, forgot my signal” moment.

That said I don’t get too bent out of shape about other people signaling unless it’s these two situations: making a tight lane change, or with a speed differential where I’m overtaking. Basically just short of cutting me off. Signal and I can compensate. Cut over and fuck you. Second is braking before signaling a turn, say into a driveway or side street. IDK what the hell they teach in driver’s ed these days but we got drilled that you signal first and then brake because the signal is a warning to the driver behind you that you’re gonna slow for a turn and gives them time to prepare for what you’re gonna do. Be predictable. Seems like 3/4 time people just hit their brakes in the middle of the lane leaving you wondering wtf they’re doing or if they’re just an idiot.