As for me, I usually do it from our home office using my desktop computer. I have 2 laptops (hubby has 2 laptops too, lol! And yes, we are computer crazy!) but I prefer blogging using the desktop because it is a lot faster. Besides, I am able to watch news on TV at the same time.
I also have a small Vaio laptop that I use when I want to go double time in leaving comments. Do you think I am a fanatic blogger? LOL! All I have to do is pivot my chair to the left and there it is. The Dell behind it is my hubby's. That is his side of the desk.
The home office is very conveniently located right outside our master bedroom, so it is the first room I go to after I get up.
When I want to watch a DVD or when my hubby wants me to watch TV with him in the family room, I take the little laptop with me and just blog there too.