I do my interviews mainly on weekends. I don't like evenings as I have young kids of my own and they are hungry and want my attention after daycare hours. I once booked an evening interview, thinking that my husband would stay with the kids and feed them...well he had forgotten to tell me he had a meeting that evening and I ended up on my own with two hungry kids while interviewing...fun times! I prefer a Saturday late morning. I do all my cleaning in the morning before the interview and then it's done for the weekend as well. I am fresh, my kids are fresh and my husband is there to take them outside if they get rowdy. As for advertising, I find most people through Kijiji or Daycare Bear and some through CCPRN here in Ottawa. I find it's slow in summer as everyone is on holidays. I have been advertising for over a month and had pretty much no repsonse (mind you I am looking for an over 2 year old)...but I am not panicking as the space is for November and I know things will pick up in September.