I almost never get bored. The reason for this is because whenever I know I am on the verge of becoming bored, I always interest myself with something, whether it be a chess game against my Mac or a journey through Wikipedia to read about whatever or a quick jog outside.
It's not possible for me to be bored, like alexanderao, I will shift to something to occupy my time. One might say I get bored of doing some activity but I would say I just got tired of doing it. Like I will get tired of working and go for a walk or get tired of reading and watch a movie.