You can change the margin-property of the ToolStripStatusLabels, even to negative numbers:
For example, try '-2; 3; -2; 2', this will make the items get closer together.
Watch out not to go too close, to avoid overlapping.
To clarify, what property I mean, some sample code (designer generated):
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.statusStrip1 = new System.Windows.Forms.StatusStrip();
this.toolStripStatusLabel1 = new System.Windows.Forms.ToolStripStatusLabel();
this.toolStripStatusLabel2 = new System.Windows.Forms.ToolStripStatusLabel();
this.statusStrip1.SuspendLayout();
this.SuspendLayout();
//
// statusStrip1
//
this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.toolStripStatusLabel1,
this.toolStripStatusLabel2});
this.statusStrip1.Location = new System.Drawing.Point(0, 240);
this.statusStrip1.Name = "statusStrip1";
this.statusStrip1.Size = new System.Drawing.Size(284, 22);
this.statusStrip1.TabIndex = 0;
this.statusStrip1.Text = "statusStrip1";
//
// toolStripStatusLabel1
//
this.toolStripStatusLabel1.Margin = new System.Windows.Forms.Padding(-3, 3, -3, 2);
this.toolStripStatusLabel1.Name = "toolStripStatusLabel1";
this.toolStripStatusLabel1.Size = new System.Drawing.Size(25, 17);
this.toolStripStatusLabel1.Text = "123";
//
// toolStripStatusLabel2
//
this.toolStripStatusLabel2.Margin = new System.Windows.Forms.Padding(-3, 3, -3, 2);
this.toolStripStatusLabel2.Name = "toolStripStatusLabel2";
this.toolStripStatusLabel2.Size = new System.Drawing.Size(25, 17);
this.toolStripStatusLabel2.Text = "234";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.statusStrip1);
this.Name = "Form1";
this.Text = "Form1";
this.statusStrip1.ResumeLayout(false);
this.statusStrip1.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}