Dell :: Clean Under The Keyboard On An XPS16?

I've been wanting to clean any residue that's built up under the keyboard the past few months: dust, hair, crumbs, whatever else that may have slipped by despite how careful I try to be with letting debris in. A friend that cleaned my old Toshiba would 'pop' the keys out, but that ended up breaking/loosening some hinges later on, and I would prefer not to have send his laptop to Dell for such a silly reason.

Is there any 'easy' way to this? I'm assuming the safest way would be to unscrew the back and locate the area beneath the keyboard?