Dear Time Traveler, we have been informed that you are planning a journey through the fabric of time. We cannot let that happen. You will cause paradoxes. Many, many paradoxes. We have solutions, though.
Our solutions involve a variety of methods:
Or, if all else fails, you can always try the old Prevention by Oblivion method. We hear it's very effective.
Caution: These solutions are highly experimental and may cause unintended consequences. Use at your own risk.
Best regards, The Time Travel Prevention Agency