New York, New York
Dog walker and co-founder of Biscuits & Bath

"We walk dogs in the rain and get wet, we deal with grumpy New Yorkers who don't like dogs in elevators, or sidewalks; with doormen who are furious at a dog that goes right in front of their entrance. Dog walkers are a subclass below nannies and maids in this town. It's the harsher of the jobs. We face the elements all year round. There are other dogs out there, some of which are not so friendly. So the tips are thoughtful regardless of the amount given. The work is very akin to day care. But it's harder for us because the 'kids' can't speak."

Best holiday tip: "We have very generous 'parents.' They have given us sweaters, nice lunches, tips of $25 to $100 or tickets to a play. The generosity of the clients never ceases to amaze me. Some have donated $1,000 to the staff and have had lunch catered. Twelve large pizzas and drinks. It feels great, even though I'm a vegetarian and don't eat dairy. Just the thought that all the hard work we do throughout the year is noticed."