Possibly the Brown House Moth Hofmannophila pseudospretella. If it is keep it away from your flytying stuff and check your clothes for caterpillars. According to my book they like various dry materials including dried fruit and fabrics
Hofmannophila pseudospretella - BugGuide.Net
Lepidoptera (butterflies and moths)
'The larva eats wool, feathers, grains, seeds, dried fruit, wine bottle corks, carpets, upholstery and leather. A fully grown larva can be 20 mm long with a shiny white body and a brown head. It pupates in a tough torpedo-shaped cocoon in the material it has been eating.'