Preface:

Let's say that you have Button control named myBtn and you want to handle its Click event:

myBtn.Click += new EventHandler(myBtn_Click);

static void myBtn_Click(object sender, EventArgs e) {
   // do something
}

Now, raise your hand if you ever attached the event handler to the event manually, meaning you wrote "new EventHandler(myBtn_Click);" or even specified the method signature "void myBtn_Click(object sender, EventArgs e)".
I don't know about you, but the way I work is by simply writing "myBtn.Click +=" and this magic yellow thingi appears:

TAB-ing again will generate the method stub and I'm good to go.

Doing this yellow magic on delegates parameters:

We all(?) worked with List<T>. This nice class has some nice methods like ForEach, FindAll, Find etc which get delegate(Action<T>\Predicate<T>) as parameter. for example: 

List<int> numbers = new List<int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });

// Print the numbers via ForEach method
numbers.ForEach(delegate(int i) {
   Console.Write(i);
});

Would it be great if you can write something like:

Time for you to make a difference:

what say you ? can this save you some time ? If so - leave a comment, I'll do my best to implement it or to forward this request to MS folks (as ladybug).