Firstly, not all of us are camping
Secondly, here's what we've tried:
1) UltraFab Eliminators (JT's StrongArms knockoffs) for triangulation
2) RotoChocks for between-the-wheel chocks
3) Landing gear and stabilizers as short as possible
We still have a lot of movement. My mother-in-law has severe motion sickness issues and has resorted to wearing her sea-sick bands occasionally when with us.
My goal is to get a pair of scissor jacks and put them near the axles to take some bounce out of the suspension. We tried the Valterra Stabilizer Stands with no success.