I get parents to sign a consent form when they sign their kid up with me saying it's okay that I take them out occassionally. It is a general consent form so if I think of something to do mid morning, I don't have to get permission from every parent. If I know we will be going out I will mention it at drop off. If it is last minute, I will mention it at pick up. Every parent seems to be okay with it. I do have one that is a little hesitant and asks a million questions about our outings, but I know it's just because she's concerned about her child's safety. I tell the parents and they even make comments about how it's good to get out once in awhile and I explain to them that it keeps me sane! Being cooped up in a house ALL day, EVERY day is not my thing. Even sometimes just getting out to Walmart and bringing the kids by the toy dept makes all the difference in a good week.