I need some help with my screen cleaning. I can't clean it without making streak marks on my screens. I'm am very frustrated and could use some help.

I don't no how to clean it. But I would say but a 3ds cleaner stuff.

Just a micro fibre cloth with 1 drop if that of water on it...
( glasses cloth)
Debi :-) x

what are you using? i have used a pre-moistened, alcohol-based glasses cleaning sheets.
not that i'm that particular about it. its just what i have laying around
i DON'T recommend spraying any cleaning solution on to it, always apply it to a cloth first
a little water can work too. hope this helps

I would be cautious using paper cleaning cloths. They wil scratch your screen.
I know they are made for glasses, but they scratch them aswell.
Personally I'd say prevention is the best cure. No need to clean the screen if it isn't dirty.
However, if your screen is dirty make sure all dust and particles are gone. Most can be blown off, otherwise use a soft brush. Then, the remaning smudges can be removed using a CLEAN microfibre cloth.
That's how I do it.

And then put a screen protector.
I made the horrorous mistake of not using one on my ds lite, and what happened?
My cousins dropped some sort of I don't know what, and it got completely scratched.....on the first week I got it

i think the "horrorous mistake" was letting your cousin use it >.<

The horrorous mistake was using it in the same room with them. They were throwing it everywhere (didn't react until it had reached my beaautiful ds.)
Luckily, some time later it broke and gamestop replaced it (LOL)

No matter how much u clean it its gonna get dirty the next day unless u clean bottom half of it before you close it.Wash ur hands with soap and sanitize them before playing I know its annoying but as long you take those steps you should save your self from having to clean it everyday.

do you really do that? thats quite a bit of maintenance sir