shakran is on the money about the carpeting.
Regarding the window sills, it's going to be tedious work with an old toothbrush, sponge and bucket. Although you said they are wooden, be careful if you elect to use TSP as a cleaning agent. Trisodiumphosphate reacts with aluminum, often used as cladding on exteriors of old wooden windows.
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There ain't nothin' more powerful than the odor of mendacity -Big Daddy
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