I bought a Bal Light Trailer Leveler
for camping trips. It also takes the place of a chock as it wraps the whole tire and I know for a fact the trailer will not move once it's on.
It is really quick to level your trailer with this and the front leg HOWEVER I find it's hard to find somewhere in the trailer to store it as it's pretty large. Also, as you need to grease the screw shaft the potential for grease getting everywhere is high. That said, it still seems the smartest idea for single axle
small trailers. When I have my final trailer configuration (weight wise) down I will either make a mount for the space between the spare tire and back of trailer or behind the propane
tank in front.
I use a small hydraulic bottle jack
to lift the trailer and I rested the axle
on axle stands
. However, the Bal Leveler easily lifts one side of the trailer so you could just use that if you didn't have a bottle jack.