I converted to a Thinpad X200 a couple of months ago, which is docked in and thus connected to all my usual stuff, big screen, keyboard, sound system etc. When I want to go somewhere else, I can just undock it while running and take it with me and vice versa, which is really nice. Because this is a fairly old laptop, desktop-ing is fine, including HD-YouTube and stuff, but compiling and other heavy lifting is delegated to my big beefy homeserver (aka my old desktop) with a nice Xeon and more memory than anyone needs, which is usually on hibernation and can be woken up temporarily via Wake-On-Lan, even from the internet when I am somewhere else.

I like this setup very much, because it enables me to have a truly portable setup, and I scripted a lot to automate the usual tasks in this environment. Before, I had a laptop, but tended to not really use it, because it was just a different experience. I did not have all my data there, swapping SSDs is too much of a hassle and requires shutting down all involved machines, and so on. Now, I can literally have the computer I use almost every day in my bagpack while being somewhere else. Maybe I'll look into transitioning working from beaches or so :).