Vote! If you can vote, you should/need/must vote! If you eligible, there are no excuses. If you don't know what to vote, there is still time to read up on it. If you're too lacy to do your own reading, at least take one or two of the "political tests" available on every major newspaper's webpage. If you forgot about it, here is a reminder. If you just don't care, you're selfish and the only thing I can do is to plead to you and hope you will change your mind.
This blog post might be triggered by the Swedish General Election on Sunday, but it is much more general than that. If you live in a democratic country and eligible to vote, it is you responsibility and obligation to do so.