You can run more than one pedal from any of your existing power supply outputs (although I'd avoid mixing analogue and digital pedals, as sometimes the result can be random unwanted noise).

I'm currently running 11 pedals from a CS6 power supply, and this includes an Iridium which needs it's own 500mA output, on a "go anywhere" pedalboard.

I basically soldered up a few leads with one plug to go into the PSU which then splits into two leads to connect to two pedals. I also made up a little box with one power input and three outputs (which is basically a three-way power splitter).

You can buy a variety of splitter power leads or daisy-chains (I'd recommend no more than three on a daisy-chain, personally, but I've seen setups using 5 with on issues).

Have a look on youtube for tips. There are lots of different videos showing how you can safely power multiple pedals from one output. The main thing is not to overload any single output, otherwise your pedals won't work correctly and there's also the potential to damage something. You also need to make sure the total power drain of your pedals doesn't exceed the power supply's maximum output.

Sorry, I can't help with the "spend versus marriage" issue - my wife doesn't seem to mind that my second pedalboard is populated with, and powered by, Strymons - I suspect she views it as part of my mid-life crisis and cheaper than a red sports car and mistress :)