Mine can't solder, never did well with the sciences or maths, and doesn't know much of anything about electronics. She tends to be on the artistic side of things -- She's a great singer, does a lot of crafting (she's crocheted quite a bit lately), she's a great cook, and has a good eye for neutral home improvements ("neutral" meaning nothing too frilly or feminine). Even better, she doesn't mind too much if I leave my scopes, micros, and breadboards strewn around the living room
She lets me have the spare bedroom all to myself for my work area and she rarely goes in there.