Have a Canon G2 for about 2 years already but I absolutely have no idea on how to use it properly. I usually just put to "auto" and start snapping. Understand there's far more features to the G2. Would also appreciate if advice can be given on how to maintain it (e.g. how to clean the lens etc) and to make full use of the G2 features. Is there any mini tripod that can be recommended to be used with the G2? Asking all these questions cos I want to take better pictures. Thanks.