A strait edge (I use 2" square tube steel) and 2 C clamps work miracles, simple, safe, and very accurate. That Skil on your sawboard is a nice one and would be more versitile used as it was designed for... Now, I can feel your pain, Life without a workshop is difficult at best, but cordless tools have come a long way in the last few years, today you can saw the side off a Buick (or a sheet of MDF) right out by the dumpster.