Warming up is always a great practice for me. 

I like to spend about ten minutes warming my picking hand. I'll play from Low E starting on five with my index. Then the middle on six, ring on seven, and pinky on eight. Hold the frets down and move down to the next string. If the A string on five is muted, I know I'm not playing on my fingertips. Four strums down, four strums up, on down up down gallop on each note. So, I start on Low E, strum four down, next fret, repeat, and move to the A string all the way down to high E, then back up to low E. 

When I am done with that, I practice a few scale boxes all over the neck, calling out the route notes. I'll do the four down, four up, gallop, and then alternate picking. I noticed this helps my brain sync my hands together. 

For strumming, I like the strumming pattern from Ziggy Stardust. I needed a video for that one. It's got a high barre card transition in the mix that helps me to precisely move my hand and place my fingers. I'm not too big on playing acoustic, but I find myself craving the sound once in a while.