you will get the same effects from not loading, as you would from loading, but ita takes a while for it to build up in your system if you dont "load'. loading is a method of getting the benefits quicker.
and theres no reason to take it post workout. any time of the day, regardless with carbs without carbs, post training, pre training or at bed time or at breakfast.... you can take it whenever.
once you are "loaded", whether you do so by "loading", or by doing low dose for extended period of time (about a month or two) theres no reason to have everyday supplementation. your body recycles it very efficiently... all youd need is something like 5-10 grams every week and a half or so and youd be just as well off.
.................. if you want to get technical about it.