That's very subjective. Yes, one-letter variable names are usually a pain, but throwaway loop increments can be an exception. Three letter variable names are of

That's very subjective. Yes, one-letter variable names are usually a pain, but throwaway loop increments can be an exception. Three letter variable names are often perfectly acceptable, and optimal - what would you suggest I use instead of age, day, or max? Long variable names are often a massive pain, particularly those with multiple words separated by differing case or non-alpha characters.