The XTC rocker steps (can be found
right here here on h2source) are what I got to allow my mother and mother in law to climb in my stock H2.
Twice as many bolts to remove/add, but I like them because they're less bulky than the long nerf bars.
I got the plain black ones. They came with some thick non skid tape that wouldn't stick real well and came up on the corners. I promptly replaced with some stair tread grip tape (aka skateboard tape) which is thinner and stays on real well. Unfortunately it also really scrapes up the back of your calf really well if you're in shorts and slide your leg along the tube. I quickly trained myself around this issue.