Dear members<br/><br/>Title : Great idea for [to saver /for saving] water.<br/><br/>What can I do [to save water/for saving] water?<br/><br/>Which one of both using 'to' or 'for' would be useable on the two sentence? And how can I know when to use 'to' or 'for'?<br/><br/>Thanks<br/><br/>SSY