The main thing is to be polite, no matter what, and to state your reasons for leaving clearly (unless the reason is that you hate your boss!) Also to state clearly on what date you want to leave. The language should be formal even if you know your boss well, as this will be an official document.
The best selection of resignation letter templates I can find is www.I-resign.com - they have phrases for different situations, are quite short and easily adapted. If you click on one and a form comes up. Just go back and click another, you do get straight to the letters and they are free. For more material, just put "resignation letter template" in a search engine.
The best selection of resignation letter templates I can find is www.I-resign.com - they have phrases for different situations, are quite short and easily adapted. If you click on one and a form comes up. Just go back and click another, you do get straight to the letters and they are free. For more material, just put "resignation letter template" in a search engine.