It happens to us all, you find yourself in the 13th century and you fancy wiping out smallpox a few centuries early, but you can't quite remember how to go about it. Well fear not, as there is now a handy cheat sheet available for the time traveler on the go.
Time travel - as seen in Back to the Future, Terminator and the seminal Teenage Mutant Ninja Turtles III - presents a lot of challenges and a lot of opportunities, so many in fact that it can be hard to remember everything. How exactly do you generate electricity, or make milk safe to drink?
Well, TopatoCo have recognized this dilemma and have designed a product to help. The Time Travel Cheat Sheet can be secured in your time machine so you'll never get caught out waiting for lightning bolts to generate that 1.21 jiggawatts you need to get on the move again.
Now all you have to worry about is not becoming your own grandfather.