Questions to ponder - Please advise

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1. How much fabric do I need for a 3 color quilt?

2. Can I sew a quilt without doing all that cutting - it seems to be such a time waster?

3. Send me Donna Posters pattern for peaks because I like that method

4. Where do I buy fabric to make a quilt? I really don't want to cut up my clothes, although I don't care about my husbands shirts that much.