Same boat. I use dedicated laptops. This is for my old Rockwell stuff, this is for my old Siemens stuff, this is my normal laptop with AD stuff, this one for Idec, and the last one for Schneider. Pretty much every laptop at the company gets retired it becomes mine.
Also works for on site access. Customer needs support? Mail them a laptop. I got one laptop that has been in Canada, both coastlines in America, Australia, and Vietnam.