I'm going on holiday for 9 nights from Xmas Day and my friend's son is going to visit our house twice/day to feed the cat, let it out during the day and back in at night. He'll leave dry food down and put fresh water down. The cat is likely to go to the toilet outside but he might need to clean the litter tray once, and also check for accidents on the kitchen floor and clean that (but hopefully that won't happen).
How much should I pay him? He'll walk to our house (10 minutes) and spend no more than 5-10 minutes feeding/cleaning - twice each day.
Thank you for your suggestions :)