For this recipe, I recommend using toasted pecans tossed in butter. They're perfectly fine without them, but I think any sort of nut really enhances this recipe, which is just a variation on the Toll House recipe. For the traditional flavor, stick with Nestle Toll House chips. Even though there are a lot of really good brands of chocolate chips, I think Nestle's have the most nostalgic taste.
I like to use slightly less than two large eggs, which means cracking the eggs into a little cup, mixing them up and weighing out about 90 grams. Feel free to ignore the egg shenanigans, but I think the cookies are better with less egg.