Last year the International Space Station threw some junk overboard -- a 635 kg, refrigerator-size ammonia tank -- and last night it came back to Earth. Somewhere. No news yet that I can find of where it landed.
NASA predicted it could have come down in as many as 15 pieces (the largest being 18 kg), impacting the Earth at about 100 mi/hr.
If you find something strange in your front yard, first take a picture, second send it to me, and third call NASA.
PS: Much, much larger things have fallen out of orbit.