For a high resolution background I did a search for space background 4k. 

I want a space background with the sun and the earth. I want to be reminded of the size and majesty of the universe and how small my perception of it is. 

I've gone back to my home page being blank and my most used apps being in page 2. Yes, it would be more efficient to put those apps in page 1, but the image helps recalibrate me.