Here's an Infographics on How to Improve Your Grammar!
Grammar is very important to writers and bloggers as well.
I hope these tips will help you be a better writer.
I agree with all the tips given but if I was to give a tip I would say...
Practice makes perfect.
Learn from your mistakes.
Cliche as it can be, writing is definitely a learning process. You cannot be a good writer in just one day. You should practice and eventually you'll get a hang of it. Learn from your mistakes and experience but not disregarding the technical stuff.