Normally, plumbing is something that I try to avoid thinking about. I either whine until my dad does it, or I actually break down and hire someone.
But this? This may make me take an interest in plumbing: Perma Flow P-Trap
Unlike most plumbing, this one is see-through, so you can see whether or not it is clogged. It even has a clean out knob, so it dislodges debris that could clog the drain.