Sounds like a great idea!
A lot of people want a Friday clean so home is perfect for the weekend however that means it can be tricky to find a cleaner with a Friday slot. I used to like a Monday afternoon clean as then I could mess up the house at the weekend, and quickly straighten things up on Monday a.m. (as cleaner needs home relatively free of kids' clutter in order to clean otherwise time is wasted picking things up, and I preferred to have the beds made etc).
You need to decide with DH when is least disruptive to his work, and also pick a time when you might be able to pop out with your toddler so you arent in the cleaner's way.
I suggest you want a 3 hour clean once a week. You will still be left with interim vacuuming in main areas, tidying up, the laundry, groceries, cleaning loos and sinks as needed.
I would suggest:
WEEKLY:
- dust and polish
- Clean bathrooms
- clean kitchen (clean sink area, wipe tiles, counters, door fronts and appliances)
- steam clean or mop hard floors
- vacuum carpets
- change the beds
- water house plants
With any spare time/less often than weekly:
- polish internal mirrors, light shades, windows and door handles etc
- clean microwave
- vacuum sofas
- occasional light ironing (we would have a couple of DH's shirts to iron sometimes)
You could either get a cleaner through an agency (more expensive) or ask for recommendations from friends or on FB etc. When you invite the cleaner to see your home, I would have it tidied and cleaned to the standard you want the cleaner to maintain. Some people are meticulous, others not.
I would also have a major de-clutter first - it is a nightmare to dust if you have lots of toys and knick knacks everywhere. Make it as easy as possible to clean, then your cleaner isn't wasting time doing fiddly dusting which will leave you wondering why not much cleaning got done this week.
Most cleaners will use your cleaning supplies and appliances or will charge to use theirs. I kept a little crate of cleaning products for the cleaner, including about 20 microfiber cloths in different colours, as my cleaner loved using them all in different areas, and I would just wash them ready for next week.