How do we waste memory

1. Re-Sharing facebook posts
2. Re-Posting articles in our blog
3. Creating/joining into many social N/W sites which we use very less often like my space,bharathstudent.
4. Joining in polldaddy like poll creating sites
5. Copying youtube videos.
6. Creating rediff.com account.
7. Writing journals.
8. Or writing like this junk??????