I am strong advocate of laser grips/sights but don't see any to fit your pistols. I think I would recommend having her shoot as much as possible w/ what you have. Ammo is at least double price and hard to find now so maybe use the CS9 as a trainer for the 40TSW to help w/ costs. I agree w/ RJ. Both of you walk through your house after dark. Might be best to go to bed for 15 min and then get up. You will be surprised how little light is needed once your eyes have adjusted to the dark. Several small 'plug in the outlet' night lights, a lamp or 2 w/ a 25 watt bulb left on all night are all you need. Our first floor is 28x39 w/ nothing except the staircase dividing it up. The kitchen/dining has the light in the range hood on and the living room has the dimmest setting in the ceiling fan light on. The front porch lights also shine into both areas.