There comes a time when employees need their own space. Infinet Inc., a $35-million communication systems manufacturer in Andover, Mass., awards a private parking space to any of its 570 employees who has been with the company for 10 years. The spaces, which are marked with their occupants' names, are allocated by seniority: The longer an employee has been with the company, the closer he or she can park to the main building.

"How do you show your appreciation to someone who has spent so much of his life working for just one company?" asks David Horton, president of Infinet. "I feel that giving a private parking space is a personal, special gesture."