I've found that gadgets claiming to be "the solution to cable woes", aren't. You can't wrap all the cables up in one big sock or other device and only have one thing to step over. This is because the paths of cables are legion.
Without fail, the best solution is, as usual: gaff and graft.
Have them lying side-by-side, gaff 'em at intervals and lay it out around the stage periphery like a circuit board or the London Underground map, with splits and sidings, similarly gaffed.
I don't do to often, but sometimes I'm concerned about it enough to spend 20mins taping 'em up.
One disadvantage is that, if you're at a particularly lively gig at the Ayr RSL, for example, and the singer's swinging the mic like a lunatic and knocks over a cymbal, which lands, uncannily, on it's edge, completely flush across the neatly side-by-side cables, it can (and did) slice ALL the cables neatly and instantly in two.
Luckily, no explosion, but we had to go to acoustics and busk the tables for the rest of the night.