Unless you really did something great to change the world, or were famous, you will be forgotten about more and more as time goes on. Say you die at age 50, young I know but it happens. The first couple years, most everyone who was close to you will visit your grave at least once a year. Within 5-6 years, only your SO and children might visit. Within ten years, they stop coming regularly. In 20-30 years, your SO, friends, and anyone else around your age who knew you dies. Children might visit with grandchildren around that time.

Within 50-60 years after youre gone, your children are getting close to death themselves. A century after you die, your children and grandchildren have likely all passed too. Nobody visits your grave anymore, that is, if they even still maintain the cemetery. After 150 years, the only things that might remain in your grave are teeth and bone fragments, and solid metal pieces of your casket. At the 200-250 year mark, the cemetery will probably be abandoned and forgotten, the graves will be torn up, and the land used for something else, assuming there are no important people buried there.

But for the average person, within about 200 years, you will just be a name in the census records, nobody will remember anything about you, and your body, casket, and headstone will be completely gone, even teeth disintegrate eventually. Clothes, TV's, electronics will quit working and be thrown away, your car/s will be sold and eventually crushed and melted down, your house will one day be bulldozed, the only things that might remain after 2-300 years could be photos, and jewelry or other small keepsakes that were passed down. However, paper photos will one day disintegrate no matter how well preserved they are. Digital photos can easily get deleted, or be gone along with a harddrive. Jewelry and other trinkets can break and not be fixable, and be thrown away. Or, they simply no longer hold any meaning to your descendants, and are sold and melted down.

After about 400 years, nobody will remember you at all, or have anything that reminds them of you. Records likely will not be kept after this long, and will be deleted. There is a chance that in 500 years, you might as well have never existed.