When I was at college I was moving apartments every year, all shitty so I freely smoked inside, even leaving the windows closed when it was cold. I moved back home recently and am living in my parent's basement which they converted to an apartment for my sister to live in for a while when she got out of college. LUCKILY, my rents are accepting of my pipe smoking, and allow it down here, but I respectfully keep the windows open at all times, even in the Chicago cold, and frequently use candles, air fresheners, clean carpet, etc. Haven't cleaned walls yet but likely will at least once before I'm off to Grad School. I keep the cigars outside tho because I've found they skunk up a room something fierce and quickly too!