Honda Accord LX - 1995. 167,000 miles

My Honda will not start. There is no power at all - no lights, no click
when I turn the key, nothing. The local country shop changed the main
fuse, checked the battery, cleaned the cables, and it started there. They
brought it to me Friday evening so I know it ran then. Yesterday morning it
wouldn't start with the same symptoms. The shop is closed over the weekend
so I can't ask them any questions until tomorrow.

Any idea?

Thanks,
Nancy