Enclosures for a project

Often it is hard too find the right box for your projects.
I came across this site and thought it may be of interest. (no connection with me)
I am not sure about prices.

If others have enclosure suggestions please add to this one.

This one looks like it would be good for a proto board.

I haven't ordered one of these but I'm going to.

The sixth picture where it shows the little perf board mounted inside the box is what I'm sold on.

I have an Ultimaker 3D printer, but for basic boxes, I just buy project boxes like those.