Back when I worked as an editor, I used to be especially hardnosed about what I like to call "nothing words", such as "very", "really", "just", and "actually". These words add nothing to a sentence and are mere filler. Consider the difference:
Very few people really understand just how worthless these words actually are.
Few people understand how worthless these words are.
I find it hard to remove these nothing words from my speech because that's how people talk nowadays, but I've been working to ruthlessly remove them from my writing.
Peter Saint-Andre > Journal