I often use my laptop on construction jobsites or in very dirt-filled situations. Over time, the keyboard gets dusty, greasy, etc. Pieces of detritus fall down underneath the keys, and come to interfere with their action over time. We're talking about a lot of dirt: people have dumped sawdust on it, accidentally spilled a bag of grout over it...you name it, and that's without the average high-mess daily use I put it through.
I personally really dislike latex or similar laptop keyboard covers. So my question is:
What models of laptop or laptop keyboard are very easy to disassemble and thoroughly clean?
What I've tried/considered: I'm reasonably technical and have plenty of time in which to perform said cleaning, but after taking out and cleaning the keyboard on a 2009 unibody MacBook Pro (so many tiny screws), I'm hoping for something that is easier to disassemble/access/clean.
Hardware specifications and platform are irrelevant, since I do most of my work in a browser anyway.
I've looked into the ToughBook line, but they seem to simply isolate the keyboard from the rest of the laptop (reducing risk from a liquid spill), but aren't particularly cleanable.