1. Don´t stress over counting calories, grams of protein, etc. This is the fastest way to get frustrated and burn out.
2. Learn what is in the common foods you eat and memorize it. This will enable you to have a sense of how much is enough, so as not to undereat, but if all else fails and there is no way around it for a oarticular meal see rule 1.
3. Be rdundant. Eat protein from as many sources as you can. Eat more protein than you need in each meal, it is better to err on this side than the other. My favorite meal is 10 egg whites 3 whole eggs scrambeld with 3/4 lb of ground beef and a cup of cheese. After that I eat 4 cups of oatmeal with 1/2 cup of brown sugar. I drink about 1/4 - 1/2 gallon of skim milk during the meal.
4. Drink skim or 2% milk with everything. Drink at least a gallon a day.
5. Add a protein shake to the first and last meal of the day. Know what kind of protein it is an what kind is best. In general you want a mix of whey isolate, calcium caseinates and free amino´s.
6. Buy in bulk. Cook in bulk. BBQ´s should be performed as often as weather permits.
7. If you wake up in the middle of the night to piss, stumble your ass to the kitchen an make a shake with some natural pb and oatmeal in it. Calories+Bonus meal = good.
8. When you get a craving, listen to your body in general. I have put away some incredible meals when my body was craving a certain type of food.
9. Every so often when you get tiered of shoveling food down your throat constantly and you lose your appetite and drive to consume - take a break ... refer to rule number 1. What happens to me after a prolonged period of eating 6 - 9 thousend calories a day my body gets tiered and I can´t get an appetit. So every month ore two, depending on the kind of training I am doing, I fast. I literally do not eat a bite for a day or so an drink a ton of water and coffe. It cleans my system and gives the digestive system a much needed break. Some may disagree but I think this sort of cheat day for a person trying to put on size is important... it won´t kill you, you will not shrink, it will probably be better for growth in these situations than forcing down food.