Shorten/Redirect URLs

Lately, I’ve become quite lazy typing in long URLs and would like to redirect URLs I type to sites I would like to go to.

For example: I would like to just type “pct” in the URL to go to “http://www.prudentialct.com” or “mup” to go to “http://www.update.microsoft.com”.

How can I manually create this type of redirection so I can simplify my browsing experience?

Thank you,
Derek