Cutting out fan grills with a pair of wire cutters. My new antec case came with those cheesy stamped grilles and after running my system for a few minutes i decided that were making too much wind noise. The problem was i was at my apartment and the only tool at hand was a pair of wire cutters. The front grill was easy compared to the back, which involved bending and twisting the metal till it finally gave way. End result- quieter case, a dull wire cutter, a raw spot on my hand and the realization a dremel would have been a worthwhile investment.