So you don't plan to attend any weddings, funerals, awards ceremonies, or banquets?
I attended all of these without a suit or a tie.
At work there was an unofficial rule in my department that shorts were unacceptable. Until one hot day we convinced 2/3 of the department to come in shorts. A few weeks later there was an official communication regarding how to deal with the heat (I guess so that the company could continue skimping on air conditioning), and one of the recommendations was to wear comfortable clothing. We took that as vindication of our new dress code.
Later a new low for the dress code was reached, when someone came to work in a horse costume on a dare.