Remember this.
Solution: Pick a time during the, probably should be your free time at the end of the day so you can read all posts made that day, and use that time to go through the list and read.
Again, pick a time during the day, when you have enough time to read, review and mark the thread, and use that time.
Yes, you've asked, but refer to Mists' post. You are required to read it. Just because you were tagged or "don't want to" doesn't mean that you get a free pass, unless for some reason you are allowed to follow the rules when ever you like? Is there not a punishment system? Can you not do anything if people repeatedly tag people when they don't need to? Put the Forum Etiquette in your signature. People can refer to that as they like and get punished or reminded if they don't follow it. Like Mist said, it's irritating, but still your job to read it.