I have been cycling to work, during my 4.6 km commute, every Friday, for the last three months now. (1) I save about USD 10.00 every Friday: a substantial amount in the part of the world I live in (2) I get off work two hours early on Fridays, so I use this time to explore the city (3) This is a form of exercise for me.
I started this while in gradschool---left gradschool about six months ago, after seven years. It is so funny how this particular habit has stuck on me. I have found I actually enjoy cooking now [...]
It certainly does look like it was made by Microsoft Office, however, pdfinfo says Producer: PDF Annotator 5.0.0.511 [Debenu Quick PDF Library 11.15 (www.debenu.com)]
I have been TA'ing a first year Python Programming course since beginning of this year; what you describe is the most common trick used by students---even though they have been told time and again that this will be detected.
As an example, MOSS picked up 91% similarity---between two students---for one of the module files.
I have been using whatsapp-purple---a WhatsApp protocol implementation of libpurple [1] for some time now and it works really well.
That being said, accessing it from within a browser window has it's advantage. I currently have to install whatsapp-purple on all machines I use & syncronising chatlogs via Dropbox has it's challenges...