gistfile1.js

// How it probably should be done:
var options = Array.prototype.slice.call(arguments),
    length = options.length,
    thisObj = options.shift(),
    script = document.createElement('script');

// How I sometimes do it...
var ops = Array.prototype.slice.call(arguments),
    len = ops.length,
    hoc = ops.shift(),
    scr = document.createElement('script');

// Btw, 'hoc' is 'this' in Latin...

@jdalton,

I've never encountered an issue with slice() (no args), but I guess it wouldn't hurt to add a 0 ... just in case!

I like the idea of moving the =... although I might also tab the identifiers so that they line up (not sure if that was a mistake):

var options = Array.prototype.slice.call(arguments, 0),
    length  = options.length,
    thisObj = options.shift(),
    script  = document.createElement('script');

Cool. On tabbing the identifiers, I usually do a one space indent for multi-line var lists. (my coding style has been influenced by bits of PrototypeJS, Andrew Dupont, and Diego Perini)