What do you do about tight fingers/forearms the day after practicing?

[Bob]

If I push practicing one day or sometimes just do something different in practicing, fairly often my fingers and forearms will feel tighter the day, esp right when I wake up.  It's not a great way to wake up. 

Is there any way to work around that?  Or is 'just deal with it and eventually you'll adjust to that level?'

It gets annoying when it's *always* there. 


I probably already have "the" answer I'm looking for in my mind.  I just don't like it.....