Used hamster bedding, shredded junk mail, shredded newspapers ... that should be enough unless you are dumping in large quantities of scavenged "greens".

Other "browns": paper bags, shredded printer paper, cardboard boxes. With junk mail and printer paper alone, I generate more than enough browns.

Really? Wow... I find it amazing that I don't need leaves/grass to compost. I got the impression that I needed leaves and grass... and that paper products should only be some percentage of that. I didn't know it's all I needed. This is very exciting!

I have a new bin where all my browns are shredded office paper, newspaper, and cardboard boxes layered in (I break them down flat and lay them in 'cuz I'm too lazy to shred the boxes). It's too early to tell how well it'll work, but IALBTC).

Do you use paper towels in the kitchen if you do they can go right in the compost bucket also

Get some sawdust if you can. It's great as a brown and really keeps the greens from stinking things up. Hamster bedding should do fine too. Even newspaper, torn up a bit, makes a fine brown to soak up the messy greens. Get it to a point where the moisture content resembles that of a wrung out sponge and things will really start to happen. Hope this helps.

Paper towels, and the card board roll that holds it. And something I'm sure you must have, toilet paper cardboard rolls. Tear those up and toss em' in. Less to take to the apt. dumpster!

grass are greens btw.

other browns:
pasta
bread
cereal
sugar
cotton fabric
dryer lint
floor sweepings
paper towels are fine.

I have a 'at least one cut' rule: where possible, everything that goes into the compost gets cut at least once. This increases the surface area. I have a small container, so I find tearing the paper in as small pieces as possible helps keep it from clumping.

"other browns:
pasta
bread
cereal "

Those three are greens.

dang, you're right. live and learn

Grass clippings should be directly mulched back into the lawn. Mulched clippings provide nutrients and moisture right back to lawn, where they came from. I rarely compost grass clippings.

The primary components of my compost pile are kitchen scraps, junk mail, pulled weeds.