What is an inexpensive replacement for these garage flourescent lights?
https://s13.postimg.org/7jivra81j/garage_lights.jpg

There are four of these sets of lights, each of which holds 4 flourescent
bulbs, which keep flickering, burning out, and making humming sounds.

In a word, they suck.

So, instead of replacing the bulbs for the rest of my life, is there a good
but inexpensive quick and simple replacement strategy?