I changed all the lights in the house and shop over to LED a few years ago, definitely made a dent in the electric bill. Most of the lighting that I use daily is actually low-voltage LED strips with controllers that allow me to dim them or change colors. I got a pack of 8 4' strips for the garage, much brighter and more efficient than the fluorescent lights they replaced. Also work in cold weather and don't flicker at 60 Hz.
Keep spares around, LED bulbs theoretically last years and years, but unfortunately they are almost all made in the PRC, using the cheapest possible components. The main point of failure that I've found is in the power supply, either cheap caps going out or overdriving the LED's to failure.
Wherever possible, I try to use 12v or 5v lighting. If I can eliminate the need to constantly run the inverter, that saves a ton of energy. Large DC loads (like my radio gear) all get their own batteries, so I can lessen the need to run very large wires all over the house.
Incandescent lights still have their place, especially if the heat output is needed. When they talked about banning them, the only thing that was available was "Rough Service" bulbs intended for work lights and such.
I recover LED's whenever I can, I have a huge box of the LED lights that Harbor Freight used to give away. Both the blue "work lights" and the black flashlights use 3 AAA batteries, and are easy to convert to USB power for a very portable, bright light that can run off a number of sources, from a 120V USB power "brick", to a laptop/computer, to a portable battery bank. I try to mount them on a 6' or longer USB cable and have several that are on magnets or clips to place them where they're needed.