Materials for blogging

Before starting blogging, I never think what kind of devices I need for using routinely or it is necessary for me. And now, it is my compulsory equipments as a tool for blogging.   

Right now, there is some stuff I need while I go out and somewhere and need to use it regularly. My necessary devices are:

Computer or laptop: basically, it is necessary equipment for me because I need to type articles, to save documents or do something. If it have no it, I would be hard to regularly blog. It is not absolute that you have to possess it, sometimes you can use computer at internet café or at school for typing articles and then save in your USB for next post.

Digital Camera: I need to take photo for my blog. I have to keep it with, even though I go somewhere. Before I never thought that I had to take it with me any time when I go out. But it now is important for me. Sometimes, I use my phone camera to caught pictures.

Stationary: it is like notebook, pen or pencil that I need to take note something. Not often, I took note in my phone note.

All of these are my compulsory materials I require necessarily, not including internet connectivity, hosting, domain name, or anything else. Do you think that it is necessary for you? What other devices you need as tool for blogging?