Oooh, flexibility challenges?
I'm working on getting back to perfectly flat on the side splits. I'm fairly close right now, and I'm pretty much there with front splits.
Once I get that, then I'm going to work on holding that while suspended between things. As a teen I could do this for minutes at a time. I even got to the point where hopping into the splits was pretty easy. It took about two or three years to lose the ability to do that after I quit Tae Kwon Do, and it's taken about 3 years to get close to getting it back. Sigh.
Touching palms to the floor is a good challenge for most. If you can do that, try first touching your nose to your knees while standing or sitting, then work on getting your nose further down your legs, like on your shins.
Good times.