My problem with double-clicking the Text tool is that I usually need the Select tool to fine-tune alignment after I enter text. So what I do is create one text box, fill it with some sample text, get the font settings I want and then copy that text box to the clipboard. Then I just stick with the Select tool, pointing and pasting wherever I want text and then editing and adjusting. If you find yourself needing to switch between the Text tool and the Select tool often while filling out a form, this could save you time and mousing!