[Justin]

How do we know if something can still be used or should be thrown to the garbage? My fiance always throws the plastic bags but I fix them up so that we can reuse them again.

How about old furniture and appliances? What do we usually do about them when we buy new ones?

[homeworker]

For electrical appliances, some of the manufacturers are willing to dispose of them for you. You can browse the website of the manufacturers for this.