Tim S wrote:
The Natural Philosopher coughed up some electrons that declared:

Have you considered using a server to use your and one or more
neighbour's broadband lines so you both get twice the speed most of
the time?
Very complicated.

Not necessarily. It's called link aggregation or bonding and if you use an
ISP that supports it, and (for an easy life, but you could DIY it[1]) buy
their recommended router widget that does link aggregation/bonding then in
principle you could do this:

Fit master sockets with ADSL filters to both lines.

Bring both ADSL outputs into one house, and into the modem-router.


That the complicated bit.
Easier to order two phone lines and be done with it.

But even so its only double the speed.