Happily married guy here.
Your husband is in for a treat! Total commando or bare legs with sexy panties (thong) would be a real turn on.
What I find most enticing on my wife? Unfortunately nothing stays on for long, but what really gets me going is seeing here in a pair of jeans and tight shirt, especially a rock concert t-shirt (she's so hot). At night, I love to see her in a long t-shirt and thongs, or no panties is great too! For me, anything my wife wears that makes her look "girl nextdoor" is a real turn on. She looks fantastic just being herself.
Other suggestions? Tell your husband how bad you want him. Get dirty (whatever that means for the two of you). A guy can't hear it enough.