People often ask how writers write. Do I write straight to computer, do I write out long hand and then transcribe latter? Actually I do it all ways. I find that by varying my location and tools I can stave off fatigue. So in a café I will take notes in a paper-based journal, or I'll sit in the park with my ipad. If I'm caught out I can just use my phone. Having all these places where my scribblings are kept can get confusing, but I use the inbuilt Notes application on my ipad and phone which automagically syncs to my laptop so I can cut and paste into the Scrivener file where I build, edit and rearrange my writings.
The truth is, it doesn't matter how you write. Find what works for you, with the life you lead that manages to get the words out of your head.