GC Collect Called Too Many Times?

Q. Can the GC.Collect() be called too many times?

I've seen examples where it's used one time withing the Main entry point like this:

[STAThread]
        static void Main()
        {
             GC.Collect();
             GC.WaitForPendingFinalizers();

             Application.Run(new Form1());
        }

Other examples call GC.Collect() every time a method or object finishes, like so:

private void timer1_Tic(object sender, System.EventArgs e)
{
            try
            {
               // perform method
            }
            catch(Exception ex)
            {
            }
            finally
            {
                GC.Collect();
                GC.WaitForPendingFinalizers();
                GC.Collect();
            }
}              
             
Q. What's the correct use of GC.Collect()?