I stretch after skating - this has helped a LOT.
I also do a lot of stretching, squats, leg lifts, etc., throughout my day, in addition to doing some yoga (not as much as I would like) - my feet are usually stiff in the morning unless I do some ankle rolls, etc.,, before I get out of bed.
I know that because of skating I pay attention to my posture when I am out and about - I see people who are my age or thereabout (56) and I see how slumped and out of shape they have become - necks sticking out, not paying attention to how they move, etc., and I am always trying to correct myself. I know it's because of skating and probably more awareness from yoga.
I used to spend a lot of money on PTs, massage, chiro, etc., to help with issues related to skating but now I can't afford it so I do a LOT on my own, but I have to say I learned a lot from all of those people!!