Populate a column based on input from a textbox

Hello Everyone.

I would like to populate A column based on entries in a textbox after a button has been clicked. For example:

TextBox.value = Charles Flip click a button and then cell A1.value = Charles Flip and the vlaue in the textbox is cleared. Another name can then be entered into the TextBox say TextBox.value = TIm McCoy click a button and then cell A2.value = Tim McCoy. I quess you get the point.

I can do this for just one cell, and rewrite over it, but no populate "down" the column.