A background check is always a plus! If you are not able to be with them while they are helping you pack, tell them only certain things to pack or another option is references. Anybody who has been cleaning for a while has at least 2 to 3 references.
YES! An oil diffuser just gives off a scent whereas an air purifier removes bacteria in the air and helps you breathe better.
Well a good question to start off with is rates. Everyone basis there cleanings and rates differently. Also, whether or not they have their own cleaning products is essential as well and what they use too and if they would be willing to clean your house based on your needs... more
Downstairs, if you have a downstairs, or a back porch, outside anywhere.
YES! Remove it, I do it very often and you'll be surprised what you find under there.
Once maybe every two months.
We store our shoes on a rack as well and when it builds up like that I look and think okay do we actually wear these shoes on a daily basis *yes *no and put the rest in a basket in the closet.
If you wash your dish and wipe it with paper towel afterwards you may be able to get that grease off, but my number one is Dawn dish soap.