I really want to try cloth diapers but I have no clue what i am doing!Ok what are liners for???what is the difference between liners and the cloth diapers??Sorry I am so clueless but no one in my family uses them and I think it will definitely cut down on cost and diaper rashes.What are the best ones??do they leak really easy? i need to know both the positive and neg about them.PLEASE HELP!!!