This cheap motivational trick for writers sounds just like the sort of thing that’d work for me. Would work well for PhD writers too. Which reminds me, it’s about time I put my PhD thesis online. But, see, something’s weird with the Word file, so when I PDF it it becomes three separate PDFs, which the printer could handle, but which I keep meaning to splice or otherwise fix before putting it online. Only I never get around to it cos I don’t have Acrobat Distiller. Tut tut.