There's a deep end? News to me! ;-)
Smaller stuff I just bluster my way through when it comes to the spousal unit. For larger items...those I have shipped to me at work. Then I take them home and sneak them in through the basement, to eventually go wherever they are going. Since they all look alike (black or silver boxes) to my wife, unless I say something, she never notices the difference, as long as I'm just replacing something. And since I have no space left to do anything else, this trick always works!