Homebrew PCBs

No, technically if you have a *single* sided board, there's no copper on 
the other side to connect to, you'd have to use a wire jumper.

However - in PCB, (or any layout package), you can use another copper 
layer to keep track of where you need jumpers.  In that case, a regular 
via would serve that purpose, as well as the copper traces on the fake 
layer.  That also makes the design rule checkers happy.