I've used roman emperors (caligula, augustus, nero, otho, etc.). Also notable is that of my ISP - they use words ending in “less”, for example: “priceless” is

I've used roman emperors (caligula, augustus, nero, otho, etc.). Also notable is that of my ISP - they use words ending in “less”, for example: “priceless” is the accounting system, “thankless” the support ticket system and “clueless” the customer login.