How they get in

I know how the spiders get into the house. Like everyone else they come through the front door. Olivier came in one morning and a big one shot round the door frame. I went out to get the newspaper yesterday and one huge one walked in as bold as brass. I shoo-ed him out with the newspaper and he went off down the steps in a huff. This morning I opened the front door and a small (fortunately for me) spider was dangling down from the frame at eye level. I wish they’d learn that our house is ‘invitation only’ this winter.