yes there should be a comma if the card from 3 or more people.
If your question is the following then there should be no comma: Should there be a comma after "a man by the name of _______"? No comma is needed.
You went swimming, rock climbing, and skating last week. (The second comma is optional, I just prefer it. But if you only need one comma then you can leave it out.)
A comma should follow "such as" when introducing examples in a sentence.
last comma before the and is not necessary
True, you should have a space after a comma.
The use of a comma does not depend on the word, it depends on the sentence structure. At times a comma will follow 'which' and at other times it will not.
Well, I'd use a semicolon, and comma; myself. The end sentence being, "Which impact was harder; the first, or the second?" Alternatively, you could divide the phrase in to two separate sentences. The resulting sentences being, "Which impact was harder? The first, or the second?"
No, there should not always be a comma after the word "hopefully." It depends on the sentence structure. When "hopefully" is at the beginning of a sentence, it is often followed by a comma, but if it is used within a sentence, a comma is not necessary.
The sentence "He graduated from college and got his diploma" should not have a comma anywhere. If the second part were an independent clause, there would be a comma before the "and". For example, "He graduated from college, and he wore a clown costume to the ceremony."
When you are signing a gift card, and you want to say who it's from. Do you write "from, so-and-so"? Or do you omit the comma? Punctuation is not determined by the use of any particular word. It is determined by the structure of the sentence.
"Inc" is not a word, it's an abbreviation for "Incorporated," and there should be a comma before it.
Add a comma after the