Tobacco, yes you can order pipe tobacco and cigars online sent to your house without ID.

Guns yes, you can buy a schmidt-rubin cartridge rifle or black powder revolver sent straight to your home from an online (even interstate) vendor no ID or background check, perfectly legal.

Alcohol yes, you can order wine straight to your house without ID.

These are all somewhat less known "loopholes" but not really turned out to be a problem despite no meaningful controls on the seller. You probably didn't even know about these loopholes, actually -- that's how little of a problem it's been.