Write a short guide on how to make the best possible sandwich in general. Also provide specific tips on how to make the best grinder.
1. Bread is king.  Nothing turns a good sandwich bad faster than a bread type that doesn’t match what you’re trying to create. As a general rule of thumb, think of soft breads for soft spreads. The sturdier your sandwich filling, the firmer your bread can be. 

2. Don’t limit yourself to one sauce. Mayo and mustard are great together. Mayo and anything, really. But consider dressing each side of the sandwich with different sauces. It changes the balance of the sandwich in a great way.

3. Consider the pickle. Sandwiches often have fatty, savory elements. A good pickle adds crunch and a bit to cut through all that fat. Pickles don’t have to be cucumbers, too. Think about pickled onions, peppers, or even giardiniera.

4. Let it rest. A good sandwich is like a complex chord. You want to give it a second to let those notes blend together. Your patience will be rewarded!

Let’s dig deeper into the classic Italian grinder. This sandwich is best with a crusty seeded roll. Balance out the savory meats with a sharp cheese like cheddar or provolone, and don’t forget some pickled peppers. Dress it with Italian dressing (oil/vinegar) on one side, and either mayo or brown mustard on the other. Lettuce and good tomato help complete the puzzle. 