Get it in the camera means that if you get the shot right you don't have to try and fix it later. If you have to crop out a distraction, why not recompose the shot to eliminate it before hand. This will give you a larger file size and allow for a bigger print. If your photo is to light or dark, adjust your exposure "in camera" so that the information is recorded at the right level. When you have to adjust the brightness afterwards it can introduce noise. Using lens filters can help, by reducing glare and reflections, help saturate colours and even out exposure. The best filters being a circular polarizer, neutral density, and split-neutral density .
Changing your mind-set away from "I'll fix it later" to "I'll get it in the camera" will make you work harder and think more, resulting in more "keepers".
If you want to get a photo that's not like every other photo, change your perspective. That does't mean zoom in or out, it means raise or lower your tripod, move to the side, or step forward or backward.Changing your position allows you to show things in a way that's different from how you would see it "normally".I find myself looking for higher ground alot so as not to take the same shot as a "tourist" would. Sometimes you only have to move an inch or 2, like when you're photographing plants and flowers. When your subject is very close, moving slightly will change your whole composition and have you look at things in a new way. If your subject is far away you'll have to make a bigger move unless you're including a foreground element. When your subject only has a couple of good vantage points, maybe the best thing to do is to is try a different time of day or night, a different time of year, or in different weather conditions.