Do you use any short cuts that you are ashamed of?
My aunt always sprayed the radiators with furniture polish just before uncle came home. He was convinced she spent hours every day doing housework.
Mine is gravy. I cook a fab roast dinner but no matter how I try I can't make decent gravy. It is usually greasy or tasteless. I buy too expensive fresh gravy and add a splash of something - Madeira in chicken gravy, a deep red wine in beef gravy, chopped mint in lamb.
Bisto is fine for sausage and mash or a pork chop but not for a Sunday roast!
A tip I learned when I was chambermaiding in the Old Ship Hotel in Brighton, if no time to hoover the carpets, mop it in big stokes and hapazardly, it looks like a hoover has been over it. Mind you this doesn't work if there are bits and pieces all over it.