I know it can happen, because I've taken Motor Runners helm in with me and used it. It came in handy with the 5+ melee and 1+ per. So I thought it might be a good idea for people to post what items they were able to take in with them minus cheating. So far I know of only Motor runners helm due to it being a quest item and unremovable.

I think when I first went the rebreather came with me too but that really didn't help at all.

It's still something, plus it might look good with a piece of equipment or something

If it's a quest item, it won't be removed from your inventory. But other than Motor Runner's helm, I don't know any other quest items that would be insanely helpful.

Found a few more, The Van Graff armor and weapons. When you get em just take em and run, or take them from the locker by Simon, but then only the armor will stay. While the Sierra Madre security armor has no speed penalty, the combat armor has higher durability. And the weapons would be good but due to limited ammo, they'll be useless soon. However them bring quest items, they dont weigh anything. So thats good armor and weapons(for a little while) with no weight penalty.

I think the rebreather helps with the blood red clouds but I never tested it

No, the rebreather only helps when under water. The game states that only the HAZMAT suits the ghost people wear protects the wearer from the Cloud. Oddly, you cant find any of the suits around. Not even in the Clinic or the power station. In my opinion, it should be added in a patch. Make it where a few can be found in the Vault.

The reason you can't get one is because it's impossible to take off by yourself.

You can cut them open, which is why I said more than one suit. Thou the suits would only be useful in dead money. Meaning most people who would want to stay and explore a little would not have to worry about the cloud. Once you leave, or take them off you'd need a cosmic knife to get out of them.

kodak 9000

can take lots of photos of sierra bodre to show boone when i get home

Wow, if thats the camera you get from the Classic Inspiration quest, I completely forgot about it, and never thought about it until now. Useless to kill a Ghost person, but it'd be pretty cool to show people the Ghost People and the inside of the Madre and villa.