I also don't weigh or gauge out portion sizes. I mostly just guess. Since I can tell what direction my body is headed with a mirror and a scale, I use Fitday as a guide only.
I was using CalorieKing exclusively, and only getting the info from it, then entering everything into my own spreadsheet. After finding Fitday, I now enter everything at the Fitday site. I use CalorieKing to find nutritional information from 'custom' foods because I find Fitday's database way lacking compared to CalorieKing's. In other words to make a short story long, I use Fitday to store all the info, and CalorieKing to look up nutritional values of anything that isn't 'stock' at Fitday.