My computer can't handle a bunch of textures at 4000 x 4000. If I have only a couple items in the scene, it's not a problem, but when rendering a full scene I have to go and resize all of the textures to no longer than 1024 on the longest side.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi