This may be strange...

50GB

only have 25gb free, don't know what to remove

I start to sweat at around 5 GB. Typically when the bar is Red too...

My first HDD was 1GB big, so even 50MB free space is good =)

at first it was 100gb , now it is 90 gb.

man i wish i could have more than 300gb, my laptop has 282gb, its kinda funny how it has more space than my friends pc.

It's 2013... data storage is like 4 or 5 cents per gigabyte. Why are you worrying about storage space?

I can't remember the last time I was anywhere even remotely close to having a drive be "too full".

http://oi39.tinypic.com/25teotl.jpg

Currently using roughly 9TB out of 10TB on the file-server excluding backups and mirrored system volume.
EDIT: storage is cheap today.

mine is 75% and up to 50% at max.. not really carrying about how much it is; I even care less if it's less than 500GB

i got around 130 GB free

I have 5 HD Discs wich is close to 3 TB storage, and the only one that is not full is my windows drive wich I have like 40GB free on.