Now that I've done the cloth diapering for a year, ready to try out swim diapers! Going on a week long trip and will likely be swimming at least once or twice a day. Any BTDT tips on how many reuseable diapers should I buy to take with us? We will have our own W/D in the condo if that makes a difference. I already purchased one Iplay diaper with side snaps - do they work well (should I get more of same) or any other recommendations? I plan to have DS wear the diaper under his swimsuit. Thanks in advance.