Make sure everyone is on the same page. One week laying the law down with my in-laws when we went to visit turned my son potty trained in one week, after months of failing. When the parents or in-laws follow a strict routine together(take her to the toilet as soon as she wakes, underwear right away,asking every 20 minutes or so if she has to go)works well when all involved parents/in-laws/family members are doing the same thing. Get into repetition with your daughter, and stay there. A potty that I found that worked was the "musical potty", it plays music everytime they go, makes it a fun time for them, I know walmart had them...since we got our son that toilet, he hasn't had to may accidents. Good Luck!