One of the most commonly misused aspects of basic grammar.Usually taught in the first year of education, a capital letter is used at the start of a sentence, and for names and titles /headings. This includes the names of people, organizations, places, days and months, and (often forgotten) the name of a language, brand or ethnicity. There are a few other examples, which a quick Google search will explain. It is considered acceptable to use block capitals instead of italics to emphasize a specific word or point. It is retarded to use capitals for every word, or just your favorite words, or sporadically throughout a text.

Correct use of capitalization 1. In other news, the Prime Minister of Sweden visited Washington today, and my tiny little nipples went to France.2. My assignment is in on Tuesday, Peter. I am going to Wikipedia it so that I progress no further with my education because I prefer to go on Facebook, buy myself presents on eBay and watch Sons of Anarchy online :).(note for titles: 'joining' words such as 'and', 'of' and 'the' don't need capital letters)Incorrect use of capitalization:1. Lame Facebook status: 'Just Remember You Are Always A Shining Star'2. Person 1: 'JOHN ARE YOU GOING TO THE CINEMA TONIGHT?'Person 2: 'Not if you ask me in caps lock... not cool man ...'3. 'Omg why aren't we Allowed to wear fake tan to school anymore? I like being orange!!!' (allowed did not require a capital letter for ANY REASON)