ALWAYS look your best. I know this sounds REALLY obvious but you'd be surprised by how many men don't understand the importance of this simple tip. You never know when the girl of your dreams will turn up, or where. And it’s become a bit of a cliché because it’s true -- first impressions really do count.
Here are some figures to consider from my studies.
If you make a GOOD first impression on a woman, you have a 90% chance of EVER getting with her at that point (10% of women for whatever reason will be unreachable for most men at ANY point – she might like women herself etc).