The most important habit I have carried since my COBOL days is the need to always use self-descriptive variable names. Herewith, some recent variable mouthfuls:

The most important habit I have carried since my COBOL days is the need to always use self-descriptive variable names. Herewith, some recent variable mouthfuls: char machine_prom_name_string[TERM_WIDTH_WIDE]; int memory_mapping_register[4]; int timer_interrupt_active=0; WORD floppy_controller_clock=0; BYTE four_key_reset_enable_flag; XColor yellow, green; Oh, and just to reinforce other people: Comments are there to explain WHY.