I think a box fan is like $20. Have one that blows air OUT of the window that's closest to the smoker... have a different box fan bringing fresh air IN from a different window.
Still increases your electricity bill. Why can't the smoker just have the common decency to not smoke next to an open window? I know I never do, it's just rude.
Hey... I 100% agree with you there. The smoker is certainly an ass-hat, but in this life we can only control our own actions; not the actions of others.