Pondering the meaning of life while bombing down Poorman the other day on my mountain bike, I realized the two things that have had the most impact on my two my favorite activities (coding and mtn. biking) serve two radically different purposes.
Disk Brakes. I got my first set (Hope manufactured) just last year. I'm a late adopter on the bike equipment front. The slowing/stopping power of these has totally changed how I ride.
Solid State Drives. I've been using these since they came to market. I'm an early adopter on the computer junk. The I/O speed of these things has totally changed how fast I can build & run tests.
It's the little things.