What accessories can fit onto my Mossberg Maverick 88?

I just got this gun yesterday for my 18th birthday in my name and everything and I love it already. I'm going to be using it for Home Protection and some Shooting at the Range. I got the Gun from Academy and some Winchester 00 Buckshot Unplated 15 pack from Wal-Mart for just $8. I want to put some Accessories on it like a Shell holder but I still want to be able to be able to slide the "Action (I think it's called)" Back. Also Maybe a Laser, flashlight, and anything else you would recommend. Thanks. Best answer will be chosen.