Tricks of the Trade

I stumbled onto this site today.  Tradetricks there are some really usefull posts here.  I will copy a few for you...

Mingler

Always enter a conversations with a drink you are about to finish.

If things don't go well, all you need to do is take one last gulp from your drink and excuse yourself to get another, never to return.

If the conversation is going well, finish your drink and ask the other person if you can get them anything when you go to get another. They will appreciate the gesture even if they decline, and it impies that you'll be returning for a longer conversation.
Caller

When leaving a voicemail, it's considerate to provide your number or other contact information at the beginning of the message, rather than at the end. That way, if the person wasn't able to get the info written down or memorized on the first pass, they don't have to re-listen to the entire message to hear it a second listen.

Recycling 

When rinsing out plastic milk or juice bottles for the recycling bin, use hot water rather than cold. You will be able to squash the warm bottle much flatter when you are done.

There are many more enjoy...