you'll be able to find someone...it might be a regular nanny who works three or four days with another family and has a hole to fill, it. might be a retired person or a student. you'll have the best luck if it's a consistent day of the week. if the days varies you may have a much harder time since most people want to be able to plan their week whether it's worth another job, volunteering activities, classes etc. Also be prepared top pay whether you need them on a given week or not...they're reserving their time for you.