I put this up for someone else but thought I'd put it here too.

My son wrote on a tan chair and couch with a bright blue ball point pen and we couldn't get it out with anything....and our old roommates baby had a poo accident that was dark green all over the light tan carpet and this stuff got it out by simply spraying it on and with a damp washcloth rubbing the stains out (circular motions with not a whole lot of pressure). Best of all it is inexpensive.
Available at Dollar General (probably other dollar stores too, I'm not sure of other stores).

It's called:
LA'S TOTALLY AWESOME
SPOT & STAIN REMOVER
(comes in a few formula's)

I saw it today at dollar genral. I dont need any right now. My rug needs a FULL bath..lol.. Ill take it outside and pour gallons of water mixed with laundry soap till its soaked then let sit afew minutes and hose off till it runs clear with no suds.

I keep it around b/c if you leave a pen in ayden's reach on accident the furniture is going to get scribbled on!

I"ll have to look for that stuff and keep it on hand.