I slice as I go but truly enjoy getting to the heel. I like it toasted and usually alternate between cream cheese, peanut butter, jam or just good butter.
It's usually fine, but whenever it comes to having two heels from the end of one package of bread to the start of a new package, it's a sad day. That being said, toasting them is just fine.
Didn't even realise it was called a heel till this thread - always used the Polish word for it. Loved them all my life - store bought or home-made. My sister and I fought over them as children. Perhaps this is why I love rolls - more crust per gram.