From the Web's early days, companies have struggled to make their sites faster, but the problem remains a thorny one, with new challenges emerging regularly as technology advances.
Tune-up / optimization
I enjoy being the tech hero. Relatives and friends come to me with their computer problems, and more often than not, I help them. Their problem gets solved, and my ego goes up a notch. (I can vouch for that last one. --Ed.)
If you have a PC, chances are it runs too slowly for your tastes. Over time, your computer slows down due to all the virtual junk that accumulates in there.
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