Tomorrow I am meeting a mom that I think she just needs a sitter for the summer and even if its long term I am cool with that. She'll drop off and pick up her daughter and I will provide 1 meal and 1 snack. I am going to type out an agreement such as payment and sick days. I am wondering what to wear. It will be at my my house but, I don't know how dressed up I should be because I don't want to appear to "stern" looking but, I don't want to be too casual. WWYD?