Checking Return Values Without Saving Them

Often times I will be debugging some code and I want to see a return value of a function; but the value of the function is not saved into a variable for one reason or another. 

In the simplest form you can see this scenario in the following code:

    1:  using System;

    2:  using System.Collections.Generic;

    3:  using System.Linq;

    4:  using System.Text;

    5:   

    6:  namespace Test

    7:  {

    8:      class Program

    9:      {

   10:          static int Foo()

   11:          {

   12:              return 4;

   13:          }

   14:   

   15:          static void Main(string[] args)

   16:          {

   17:              Foo();

   18:          }

   19:      }

   20:  }

If I want to see the value that is returned from the function call to Foo(), I can start by setting a breakpoint on line 18.  Then I go to the menu bar and follow the path 'Debug'->'Windows'->'Registers'.  You can see that the EAX register will contain the return value even though I didn't save the return value to a variable.