Based on my experience this evening, get kids to bed &:
- Pour large drink
- Notice tiles annoying you yet again
- Spray liberally with Flash with bleach bathroom cleaner (nearest thing to hand)
- Enjoy drink for 20 mins & return to wipe off cleaning stuff.
The difference is amazing, grease spots that have bugged me for years have gone.
I have no connection to Flash or their cleaning products, I'm simply relieved that my job of getting ready for housesitters is much easier now :)