I recently read a list of ideas that emanated from a no-kill conference, and I particularly liked the idea that all shelter staff should wear t-shirts with bright colors. Every time I enter a shelter the environments are very cold and unwelcoming. The idea of making them more comfortable, the staff cheerier looking, lowering barriers to adopting (and they should also do so for volunteering), and making the environment conducive to animals playing with potential new owners seems obvious though not commonplace.
A lot of shelters make it difficult to meet with dogs and play with them, and you certainly do not get “sold” on dogs while you are there. The process is often very difficult and depressing. Less depressing t-shirts seems like a no-brainer.