I keep every receipt in a 3 ring binder but have never totalled them up. Basically it is for insurance purposes because up here I can insure my trucks through a Collector policy (government run insurance)and it is advisible to keep records. My other half never checks the binder and never complains about what I spend on the trucks. If I decided I wanted to buy another truck she would tell me to go ahead. When I bought my second truck she was away and I put it in my neighbor's garage which prompted my buddies to ask if I was hiding it from her. Farthest thing on my mind. Then again she bought a vintage Steinway grand piano and I never said boo! Maybe that is why she is so agreeable!