pro·duc·tiv·i·ty (prdk-tv-t, prdk-) n. 1. The quality of being productive. 2. Economics The rate at which goods or services are produced especially output per unit of labor. 3. Ecology The rate
For a long time, I used Quicksilver until it went un-supported for some time (or let’s say less supported for a while). Nowadays, I use Alfred.