Out of town bookings

I've had a request to look after a couple of cats over Christmas/New Year. Obviously I can't have them in the house, so have to travel to the cats, and they are in another town, so an hour's travel per visit.

After a couple of hours fiddling with a spreadsheet (not my strong point!) I've worked out that it is going to cost the customer more for my travel (bearing in mind there is a chance of snow and definitely will be lots of frost!) than to actually look after the cats.

I've done some fiddling and can get the cost down a decent amount if I visit once a day instead of twice, but I can't help but think this will be the one that got away.