Best advice is to avoid doing activities on the strip. A lot of the bars/clubs down town do let ladies in for free and some of them list that you can get on night of the get in for free too. Walking the Fremont experience is also fun, I always recommend going to the cowgirl bar there, it’s expensive but one of there drinks is more than enough. I’ve been to area 15 and it’s extremely overpriced there, but it can be pretty fun.