Iris Garrigan has nothing.Well, that's not entirely true. She has her trusty Doc Martin boots. She has her Bowie obsession. And she has the stray cat that sneaks into her bed and keeps her company at night - it's a quid pro quo relationship. The cat gets a warm body and she gets something alive beside her when she would otherwise be alone.She also has a job. Sure, washing dishes hardly has her rolling in dough, but with no permanent abode it's the...