Semi-regular casual babysitting in Cottesloe

We have three boys, aged 10, 8 and 5. The younger two need dropping to school on Wednesday mornings (I drop older one to different school en route to work). If you could arrive at 7:15, finalise getting ready and drop off for classroom opening at 8:40am, that would be great! Pre-primary boy will need a little time to settle into class. Latest you will leave school is when bell goes at 8:55am. If you want to return to our place to help with some laundry and odd jobs for an extra 1.5hrs, that can be negotiated!