My minhag during the summer months is that I wear my tzitzis when I leave the house to leave the neighborhood where I live. When I am in the market place and elsewhere I wear them. I do not have employment today in my profession but if I did that might cause some quandary as I am a physician and it would be a possible vector to transmit infectious diseases depending on what my job description was. I would wear them for certain if I was say in the diamond business or any other non complicated business. Maybe not if I worked in construction.
During the summer months now, i do not wear them in my home right now or when I am in the neighborhood on a breif walk. I feel this is kosher as I have displayed to the world that I wear my tzitzis in public. To wear them at home, I am wearing 3 shirts and it is just not very comfortable though I do like to wear my tzitzis.
You guys may not like this and I will admit I have no friends in my usual business of the day to tell me one thing or another, but I love tzitzis for many reasons.
They are fun to twirl in your hand when you are walking around in your day.
They are a nice thing to twirl in your fingers and wrap around your fingers when you are in a conversation, espeically sometimes when the other party is against our Way of Life or unorthodox in some capacity. That said, it sure beats the aloof look of a man who puts his hands in his pockets all the time.