Warm up routine/ exercise to improve

Hey All,

What are some good warm-up exercises to improve the left hand and the right hand for plucking the correct strings?

Currently, I mostly do the spider exercise, but I could use some more variety for warm ups

Scales and arpeggios are great for precision building. 

Beginner scales.

https://www.guitartricks.com/lesson/13236

Beginner arpeggiation.

https://www.guitartricks.com/lesson/31438

Hope that helps!