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This reminds we that when I started using the notebook interface, it took me an embarrassingly long time to discover what was meant by the phrase 'click to the left for traceback'. I found this message confusing because there is nothing to the left to click on. At first I thought this was a strange way of saying `left-click'. Eventually I worked it out by accident. I suggest a more verbose message along the lines of `for traceback, click in the blank area just to the left of this line'. Or put something to click on, maybe along the lines of the brackets in the mathematica notebook, which has a hierarchical grouping mechanism whereby groups of cells can be hidden or expanded together. (Of course maybe sage does too, and I just don't know about it!)
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> 2. Is there some easy way to download/upload (i.e. save and then > reopen) the text version of a worksheet, as opposed to the compressed > notebook?
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