So what do you use?

I've been a bit remiss posting on this topic - it's actually quite difficult given that I flit between platforms and devices, but I've managed to come up with the following table based on my principle activities:

	Windows	OS X	Linux (Ubuntu)	ChromeOS	Android
WordProcessing	LibreOffice	LibreOffice	LibreOffice	GoogleDocs	n/a
				LibreOffice via Roll.app
Lightweight document creation (MarkDown)	Texts.io	Texts.io	Retext	StackEdit	MarkDrop
				Retext via Roll.app
Spreadsheets	Libre Office	Libre Office	Libre Office	GoogleDocs	n/a
				Excel via OneDrive
Email	Web client	Web client	Web client	Web Client	Application
Twitter	Web client	Web client	Web client	Web Client	Application
RSS Reader	Web client	Web client	Web client	Web Client	n/a
Document Management	Evernote	Evernote	Web client	Web Client	Evernote
PDF Viewer	Acrobat	Preview	Evince	Google viewer	Acrobat
Epub Reader	Calibre	Calibre	Calibre	n/a	n/a

This of course doesn't cover the devices used - for example I'me still using my old Cool-er ereader to read epubs offline, while my Kindle is used for recreational reading, and I still use my old noname 7inch tablet for notetaking.

I also find I use my full size windows laptop at weekends for more serious writing but prefer my Chromebook during the week for email, web and rss reading, plus writing the odd snippet. My newer Samsung tablet is used for email, online newspaper reading and online banking, but strangely I still like my original 10" Zpad for viewing images, even if it's a little slow these days ...