At this point, with the program nearing its end, I want to cover a few items that you can consider fine-tuning: this week we'll cover nutrient timing and caloric cycling, and next week we'll cover supplements. The basic idea with food timing and caloric cycling is that some believe you can get the food you eat to fuel you longer or more efficiently by manipulating what and when you eat. Note: having experimented with these concepts, I'd highly recommend experimenting with Nutrient Timing: eating fats farther from workouts, and carbs nearer to workouts (see below). Caloric cycling is a tool which can be helpful during cutting phases, but probably isn't an ideal long-term or maintenance strategy.
Nutrient timing refers to when you eat which macros. As a starting point, the Zone Diet (and I) recommend eating relatively balanced meals such that your macronutrient balance at each meal is roughly equivalent to your macronutrient balance for the day. That said, if you're trying to be really lean (in the less than 15% range), or lose weight really fast (more than one pound per week) more specific timing of carbs and fat can help you to maintain performance. In this case, shift most of your carbs to the 3-4 hour pre and up to 1 hour post workout window, and move most of your fats to the times outside these windows. Carbs are an immediate source of fuel (this is useful when your body isn't storing much fuel, but potentially problematic if you're trying to get your body to burn stored fuel), and also useful for quickly replacing muscle glycogen immediately post workout (aids recovery independent of your body comp goals). Fat is satiating (digests slowly, leaving you feeling full longer), but digests slowly, so diverts resources away from exercise towards digestion. Protein is also satiating, and should be consumed fairly consistently throughout the day, especially for women, and including immediately post workout.
Intermittent fasting and refuel days are the two primary modes of caloric cycling, with more complex schemes relating to efforts to match intake with expenditure falling into this category as well. With intermittent fasting, the idea is to basically skip breakfast, and cram your remaining calories into the 10 waking hours (according to what I've read, this has mixed results with men, and pretty universally negative results for women). With refuel days, the basic idea is to eat at a deficit, topping up your energy stores with up to a few hundred extra calories (some suggest pure carbs) every 7-10 days. The more complex schemes strive to match intake with expenditure (less on rest days, more on training days) netting an average calorie deficit throughout the week, while feeling fueled for training. Each is potentially worth a try, but I'd estimate these strategies are about 5% of the puzzle at most (potentially good or bad).