1. “I personally think …” well, how ELSE are you going to think?
2. “Fairly unique” – unique is a stand-alone. It does not need a qualifier. It is either unique or it is not unique. End of story.
3. “With all due respect” generally precedes something idiotic and not remotely respectful.
4. “Shouldn’t of.” You mean shouldn’t have.
5. “I feel badly” I give you credit for trying to get it right. But what you’re saying is that you do not feel correctly. You’re modifying “feel” when what you want to do is describe how you feel. So, “I feel bad” is okay but perhaps what you really want to say is “I feel guilty” or “I feel angry” or what-have-you. You know, use an actual feeling word.
6. “I don’t think that…” Technically speaking, this is correct. HOWEVER, am I the ONLY one who thinks it’s a bad idea to start out at statement with “I don’t think”? Because if you don’t think – could you just shut up? And besides you clearly DO think or you wouldn’t have an opinion on this subject. So there.
7. “Guesstimate.” There is no such word. Stop it. You mean “estimate.”
8. “Irregardless.” There is also no such word. You mean “regardless”.
9. “Your welcome!” Um. Well, it is my welcome, yes, but what I think you mean to say is “You are welcome.” YOUR is about possession: it belongs to you. YOU’RE is the contraction for you are.
10. In this case, it’s things you should stop writing. FOR THE LOVE OF ALL THAT IS HOLY, STOP USING AN APOSTROPHE WHEN YOU MAKE THINGS PLURAL. “There are 3 dog’s for sale” is an incomplete sentence. Three dog’s what? Three dog’s tails? Three dog’s sweaters? Oh wait. You meant that there are three DOGS for sale. Leave out the dog gone apostrophe.

A side rant: I told someone that ya’ll is incorrect and it should be written “y’all.” They argued with me that it depends on where you live. Uh, no. The apostrophe in a contraction designates missing letters. Since the missing letters in question are the “ou” in you, the correct place for the apostrophe is after the y and before the a. Just so you know.

I have great plans to start writing another blog all about grammar and usage as it clearly drives me to drink. I even bought the domain (www.TheGrammarMechanic.com) but I haven’t gotten around to doing it yet. But I will. Be warned.