In the past two months we have hand hundreds (and hundreds) of these bugs in the house.
The image is too small to id completely but this is a true bug (Hemiptera), probably one of the (many) plant-feeding bugs that infest agricultural fields. Many of these species become nuisance pests when they migrate into homes the fall as the fields dry up. This behavior is similar to the much larger box elder bug (see http://www.livingwithbugs.com/boxelder.html for more info). Control options are similar as well. Since the bugs are harmless many people opt to just sweep them up when found, generally no treatment is needed.
I can answer questions in any area of entomology (study of insects, spiders, mites, ticks, and other terrestrial arthropods). Contact me about home and garden insects such as aphids and spider mites, insects that bite and sting such as ticks and wasps, and insects that damage homes such as carpenter ants and termites.
20 years as university extension entomologist, now retired; currently publish a website about home and garden insects.
Organizations see www.livingwithbugs.com/resume.html
Publications see www.livingwithbugs.com/resume.html
Fine Gardening magazine
Education/Credentials Ph.D. in Entomology (the study of insects)
Awards and Honors see www.livingwithbugs.com/resume.html