I second the rechargable headlamps! Once you go to one, you'll not want to go back to having to buy batteries. I run the Black Diamond Revolt which is about 60 bucks. The charge lasts a long time. Like a full 10 day hunt!
Even better have my parents baby sit for free, tell my wife we can use the money for the date, then keep the cash to buy something anyways.Tell her you’d like cash. Then use it to pay a baby sitter and take her out on a date.