Dear Girl who works a Subway:
It's really not polite to complain about your job while doing it. Also, if you wouldn't gossip and complain about your job while trying to work, you might could be a little more efficient. Just saying.
Dear UPS Man:
Thanks for always being so nice when dropping off packages at work.
Dear Sweet Snuggly Baby in my Bed:
Thanks for being such a sweet angel in my life.