I just started wearing suits and am totally new to pocket squares. I don't have a single one at all but with your help I would like to remedy that situation. What are the essential basic squares that I should first purchase? Is linen more versatile than cotton and silk? I'd imagine a white linen one would be the absolute most essential in the same way a white broadcloth shirt is. Is it appropriate to wear a square with a casual tweed or corduroy sportcoat? Of course I'm thinking of a more casual design like a check. How should I store the squares? Folded into a nine inch square? Thanks for enduring my questions as I didn't have a father to pass this information down to me.