Recently I developed my first form which used a custom Task pane.  

It took me quite some time to get some of the javascript in my task pane
correct due to the complicated nature of the xpath queries etc.  

One of the most annoying things that I found was that, as I was trying to
get my javascript right I had to be contunually removing and re-adding the
resource files (to get the latest versions of the .htm and .js files).

It would be nice if you could  have an option of "refreshing" resource files
for unpublished forms.  This would have saved me a lot of time as I was
trying to get those damned xpath queries right.