Michael Crom had traveled to Microsoft's Silicon Valley, Calif., facility to discuss a business deal, so he followed his usual routine of donning a jacket and tie for an appointment with professionals.
The software company's representatives were decidedly more casual.
''They put on their nicest and cleanest T-shirts for me," said Crom, chief learning officer for Dale Carnegie & Associates, a Hauppauge, N.Y., training and coaching firm.
He wasn't offended, he said, because casual attire is widely accepted as the standard for the tech sector. Think Apple co-founder Steve Jobs' black turtleneck and jeans.