What your asking doesn't make sence. How do people get my number? web-site, yellow pages, direct mailers, business cards, referals, van signage.
A live breathing person wearing my shirt dosent need to have a phone number or web-site address on it. Like I said nobody ever asked me to hold still while the copy the number down off a shirt.
You asked "What do you think? Is this professional or tacky?" If you can't handle anything other than "AW MAN YOUR THE GREATEST" then you shouldn't have asked.
I have added my two cents and then some. I am done with this thread.
I was raised in Atlanta, GA. lived in Chamblee and near stone mountain, Good luck to you and your business.