| If the mark is sticky, like tar or leaked biro ink, try a bit of nail polish remover on a cotton bud. |
| There was a high tech biro with a window that showed various security issues each time the button was pressed. |
| Sadly this happened to us recently after my smart smart brother left a biro in his shirt pocket. |
| Many years ago I bought a velvet chair for half price because it had a biro mark on it. |
| I'd have got a Bic biro and chewed up bits of paper and spat them through the pen at him like an old pea-shooter. |
| Stains made by biro, lipstick, paint or newspaper print should be cleaned with liquids designed for this type of soiling. |
