Well, the beauty is that you only have to do it once. Nobody that receives a cover letter from you is likely to see another one you ever send out, so it's okay

Well, the beauty is that you only have to do it once. Nobody that receives a cover letter from you is likely to see another one you ever send out, so it's okay if they have some of the same content. I personally keep each cover letter I write in a Google doc. When I have to whip up a new one I just go back and find some useful bits that apply to the position I'm interested in. That gets the ball rolling enough that the last 15% is easy to get through. I only have so many skills I want to highlight in a cover letter, so having 10-15 sentences already laying around to cherry pick from gets me 80% of the way there on new letters.