I'll up the ante. I think its high time we had 'use strictest'. No goto, recursion, regex, map, grep, $_, one letter identifiers ($a, etc.), closures, ternary operator, eval (both kinds), anything named one of ("foo", "bar", "baz"), DWIM, nested loops, references, TMTOWTDI, typeglobs, comma operator, exponentiation, bit-shift operators, bit-wise logical operators, xor (either spelling), flip-flop (range) operator, HERE docs, foreach, qw//, sigils, curley braces, and semicolons. Heck, back in my day, all we had were NAND gates, and we were grateful to have even those.