I'm cat sitting for a friend, no real hardship as it involves staying in her lovely house for two weeks, watering her excellent collection of houseplants and looking after her 2 lovely cats. No money is changing hands, and obviously I've got a free holiday out of it and it feels like a pretty soft gig for me, assuming the cat remains well. But how big a present should I get her? Is this a "welcome home, bottle of Chablis is in the fridge for you situation" or would you expect more? I don't want to be tight but I also don't want to be OTT. Obviously the cats are easier to buy for.