If you really want to protest then spoil your ballot paper, and persuade anyone else who wants to protest to do the same thing.
Political parties only really try to please one sort of person, those who will change the party they vote for and are in an area where there's enough of them to swing a local election.
They main parties have become terribly good at working out who those people are and what they will vote for, which is why they've become so similar to each other.
Not voting is no sort of protest at all, non-voters are just people that the parties don't have to worry about pleasing. That, in part, is why they don't make that much of a fuss over low turn outs and why there's no real motions to make voting compulsory. In fact not voting is just encouraging the sort of system that we have at the moment.
Voting for a "protest party" you don't believe in is dangerous, as they just might get in...
So spoiling your ballot is the way to go if you must protest. It proves that you're willing to go out and use the vote that our ancestors fought for us to get.
Spoilt papers are counted. So imagine how things will look if 10% of the papers in an election are spoilt, imagine even more than that. It would be enough to swing many elections from one candidate to another.
The parties would become aware that there is a number of votes out there that are up for grabs and that is sufficient to win them the election.
So they might work harder to please those people.
Though that said first they would try to ridicule the idea, trying to please that many people is a hurdle they lazily don't want to try for. It's in their interest for people to sit out of it and not vote.
It will take a few elections for this point to be hammered home to them but they will learn.
It's a long term process but it seems to be the way to go.
Prove that we're out there, prove that we care and prove that there are enough of us to make a difference.
So please don't stay at home, vote.
If you really don't want to vote for any party then spoil your paper.
Encourage all of your friends to do the same.
We can reclaim politics for the people, we really can, but we need to get out there and do it!