Western conifer seed bugs are among the many insect visitors that may make your home theirs for the winter. They seek hibernation spots in fall and even the best kept homes provides all sorts of prime real estate for six-legged critters. We tend to see them coming or going in fall and spring, but moving decoration boxes from attic or basement tends to wake sleeping guests at this time of year. So you may see a stray box elder bug, lady beetle, or even a Western conifer seed bug scrambling along your window sill in mid winter. None of the mini visitors I mentioned are cause for alarm and you will certainly be safe from seed bugs .... unless you happen to be a conifer seed. But conifer seed bugs are not pantry pests and so even your pine nuts will be safe.  If you find a stray insect or several, a glass and an envelope is all you need to turn them loose.  And if a much larger count disrupts your happy home, a quick pass with the long tube on your vacuum is a more than viable alternative to chemical warfare.  Besides, after death by insecticide, you'll still have to suck up the remains. All of that said, I would make an exception for bed bugs; if you are unlucky enough to host these particularly unwelcome guests, it is time to call in the professionals.