You know how sometimes you see text in an input field prompting for an answer? When you click it, it goes away, but comes back if you deselect without having typed anything.
You could do it with a couple of events. To clear the box on click is pretty easy:
Private Sub TextBox1_GotFocus()
TextBox1.Text = ""
End Sub
I'd add some other steps, add a worksheet_activate event to set an inital value and set a flag for if the default value is set:
Private Sub Worksheet_Activate()
Dim textBox1Default As Boolean
TextBox1.Text = "Please enter some text here"
textBox1Default = True
End Sub
Then I'd add a TextBox1_Change event to remove the default flag
Private Sub TextBox1_Change()
If textBox1Default = True Then textBox1Default = False
End Sub
And finally adjust the original GotFocus event to include the flag check:
Private Sub TextBox1_GotFocus()
If textBox1Default Then TextBox1.Text = ""
End Sub
You'll need to make it work for you, this way if you change tabs it will reset the text but you can have it check that on activate and change it to suit when you want it to reset.
Jesse