Babysitter Needed

Looking for a sitter/mothers helper a few times a week while I am home in the afternoons so I can get some work done on my computer and organize around the house. I may leave for up to an hour at a time for the gym. This is for one baby who is currently 4 months old. We would prefer a nanny who has their own car and who does not smoke. We can do a set schedule like Tuesday and Thursday or Wednesday also an option.