Be professional. When you submit a résumé, don’t type it in ALL CAPS and please don’t avoid the caps lock like the plague. Know how to use it without looking incompetent. Write in complete sentences with proper grammar. Of course, there will be exceptions, but even with the exceptions, you must keep it professional. You’re building their view of you.
Nice list. The hardest part about most of these is just deciding to do something small to get started. After that stuff starts happening. I really like the affiliate method and I currently make some bucks with a niche affiliate product. It does require being able to analyze competition and do some SEO though but it’s a great “set and forget” way to make money. The other way I currently make an income online isn’t on your list, although point #3 touches on it. Drop shipping is a brilliant way to make some money online without cash flow and fulfillment issues. Go onto a website like Alibaba or eBay, choose a niche product, build a website using something like WordPress and Woocommerce or Shopify and run some Google or FB ads. Heck, Google will even give you free credit for ads on new accounts. Focus is key though. I found that when I tried too many things at once I didn’t see results.