O. Each and every are similar, but;
a. use 'each' when we think of things separately, one by one. 'Each' is more usual for a small number. (e.g. Study each sentence carefully)
b. use 'every' when we think of things are as a group. The meaning is similar to all. (e.g. Every sentence must have a verb)
c. 'each' (but not every) can be used for two things. (e.g. In a football match, each team has eleven players. (= not every team))
d. use 'every' (not each) to say how often something happens. (e.g., There's a bus every ten minutes. (not each ten minutes))
O1. We can use 'each' and 'every' with a noun: each book, every student
a. can use 'each' alone, but can't use 'every' alone except 'every one'
b. can say 'each of' (the ~/ these ~/ them etc.) and we can say 'every one of' ~ (but not every of)
c. also use 'each' in the middle or at the end of a sentence. (e.g. The students were each given a book. (= Each students was given a book), The oranges cost 15 pence each.)
O2. Everyone (one word) is only for people, (= everybody) (e.g. He knew everyone in the business.)
a. Every one (two words) is for things or people, and is similar to each one. (e.g. He visited every one of those countries many times.)
Idiom 365
long story short: come to the point - leave out details
Example: Long story short, Mike did indeed call for government financing, but only after bankrupcy.