How many times have you wondered about the unwritten laws that govern our lives? The ones that your mother kept telling you about that always seemed to be right, whatever common sense told you? Well we at h2g2 have decided that it's about time we stopped mucking around with the Unifying Theory of Physics and instead concentrated on collating a collection of the Universal Laws of Life.

You know the ones we mean. You wait all day for a bus and two come along at the same time; it only rains on the day that you forget your umbrella; most people meet their future spouses at weddings... if only we had a book that listed all these Universal Laws then life would be so much easier.

So if you know a Universal Law of Life, share it below. You might also like to check out our entries on Murphy's Law and Old Wives' Tales before you post your contribution: after all, Murphy's Law is itself a Universal Law of Life, and a very useful one too. Especially on Mondays.