Do you tip the mail carrier, the person that delivers your daily newspaper or someone else that provides you with a daily service? How much do you tip?
The 50-something man that delivers my Blah included a "Happy Holiday" greeting in a newspaper about a week before Christmas and 2 days ago there was a "Happy New Year" note. The second note was probably because I did not respond with a tip, due to his being on this route only 5 months, mis-placed papers found off the porch in the snow and missing contents in several papers the last month or so.
I always thought that a tip was earned, not an automatic freebie.