I think most writers have words we feel are terrible. No matter their use these words make us reject our own prose and lead to revision nightmares. Not only do we feel our work is crapptasic, but we can't overlook our own idiosyncrasies.
I love adverbs. Those "ly" ending words add life to boring sentences. Except they don't do they? What they add to is my revision pile. I, like Stephen King, can't seem to jettison all of them, but I do try. I think I am at the point where I fail, and then try to fail better.
I really dislike "that." I would venture to guess the word can be deleted from ninety-nine percent of the time from a sentence. Pick up any book, and see how long it takes you to find "that." Not long? Now, try the sentence without "that." Did it still say the same thing? What is the "that" referring to? Something the author said in a precious sentence, or nothing at all?
Here is an example from Struck and White:
Here is an example of the 1% of the time you should keep "that:"
When in doubt, say the sentence out loud. Speech often uses "that" as a "defining or restrictive pronoun" (Strunk and White, pg 59). Sometimes we lean a little too heavy on "that." "That" can lead to sloppy sentences where you aren't actually saying what you mean to.
I seem to use "it" in sentences when I want to vary my words. I don't want to keep referring to whatever "it" is. I have a habit of using the same words over and over again in a day's writing. After one writing session I realized I had used the word "simply" seven times in a 1000 word session. Not only was it awful to read over and over again, but the adverb thing hurt my head.
What is the "it" referring to? Probably something you referenced already. Example: The table looked beautiful. It was full of glassware and silver. That "it" meant I didn't have to use the word table again, right? There is probably another way to get around using the word table again, but I seem to rely to much on "it" to get me to where I need to go. I could make an entirely new sentence altogether. The surface glowed as candlelight bounded off the crystal glass and polished silver. So if I dig a little deeper, I might find a new and better way to say something instead of "it."
If you don't own a Stunk and White "Elements of Style," go find one. They can be found everywhere. It's simple to read, and helps me figure out pesky issues I have with my comma addiction.
Hoping you find a new way to say something.