Easy Question RE: Manipulating one form from another

This seems like it should be really easy, but I just can't figure it out.

So form1 has two buttons, "Open" and "Close". When a user clicks on "Open" it would open form2. When the user clicks on "Close" it would close form2.

My main problem is when the close button is clicked, how do I reference form2. For instance, when "Open" is clicked, there is a line of code that says:

VB Code:

Dim Frm2 As New Form2
Frm2.Show()

How do I declare Form2 in the "Close" method so I can do Frm2.close()?

One way is to declare frm2 as a module level variable, then you can access it anywhere in form1.