hi. does anyone have any advice about a stairgate that an toddler can open easily. my ds2 is about to crawl-possibly(is 1year and a day so i live in hope)-soon and i really need a stairgate ds1 aged nearly 4 can open himself as he will get very annoyed if not able to roam around house as usual. ds1 not the type to try repeatedly to get something to work- if its not easy will just give up!!any ideas?