Letting Oneself Go:
You finally realise you've let yourself go when a drunken tramp stops you in the street and tells you it's about time you lost some weight. The sad thing is, you probably think I made that up.
While consulting a dictionary for some help on a crossword the other evening, I discovered that the word bollocks is derived from the Old English beaullucas, meaning testicles. This amused me far more than it should have.
Advice to the Young Writer:
Avoid the avoid clichés like the plague cliché like the plague.