AudioQuest 3 US Power Strip
Until I find a way to run more dedicated lines, the best option is to split the AC sources by using a power-distribution box that takes up space and can be costly, or to simply add a multi-outlet extension cord. Horrors! I don't really want to run all that fancy gear on a $2.99 18 gauge throwaway from the local hardware store.
I've found an effective yet inexpensive solution: AudioQuest's sturdy little 3 US ($35). Its name, though not melodic, is descriptive. At one end of the 3 US's sturdy case is a power inlet that accepts a standard three-slot IEC power cord of your choice of length and girth. (I used a 10'-long AudioQuest NRG-10.) On one face are three US-standard three-prong power outlets. Inside, the input is connected to the outlets by heavy-gauge bus links of solid copper bar. Plug in a good cable and you have a serious extension cord that will distribute AC where you need it. AudioQuest's brilliantly simple 3 US should be in everyone's kit of parts so that it will be there when you need it. And you will.