Suction Cup Mount
Very handy for filming in tight spots like a car. These can also be used place some LED lights in those same tight places and they are not very expensive.
Guerilla POD
Basically good for the same things as a suction cup mount but where you don’t have a flat surface. Also cheap.
Clamps and Arms
IMO you cannot have too many possibilities to mount cameras or lights or microphones to anything and these give you more options and can also be used together with a rig or cage to build quite powerful one-person shooting kits.
