xScope ★★★★★ 

xScope is “eight tools in one that will help any designer or developer do their job faster and produce more accurate results.” After a happy couple hours messing about with xScope, I’m hooked, world rocked, mind blown. A beautiful, seriously useful tool for any kind of designer/developer that solves countless problems and annoyances. If I could have had xScope when I started digital publishing in 1994, my hair would be about #3A3A3A instead of #7E7E7E.