string1.upper() - Use the upper case version of a string, string1.lower() - Use the lower case version of a string, string1.islower() - Check if the string is only lower case characters, string1.isupper() - Check if the string is only upper case characters, string1[0] - The first character in a string, string1.isdigit() - Check if all the string is only numbers, string1 + string2 - Concatenation - joining strings together, string1[0:3] - The first 3 characters of a string, len(string1) - Find the length of a string, str(VariableName) - Turning a variable into a string,

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