Advice in convincing the Mrs...
Start, she'll come around. I have all three of my kids, two boys and a girl on DE, brush and soap shaving. The oldest boy, is straight razor shaving now and my wife wants to learn, after she had her legs shaved with a straight by me. It is a better system, once you learn. Yes, there could be some cuts. Just stop the bleeding and keep on going. The cuts will come further and further in between, and the shaves better and better. Read, learn and practice. It is a lot of fun by the way. Double O
Re: Advice in convincing the Mrs...
My wife was the same. I mentioned it once or twice and she didnt seem to approve so i just thought to hell with it... If she can have her interests i can have mine... And i bought my first one off the bay. When it arrived i pulled it out of the packaging and hid behind the razor just in the event of any wild attack off the wife but when she saw it she realised my mind was made up and well... With the exeption of interrupting a shave once or twice... Has left me to it. Ive even got my own shelf in the bathroom (its sacred ground in our house so for her to donate me my own space was like christmas had arrived).
Sell it to her... As someone else has mentioned tell her how much money you will save (we all know youre likely to remortgage your house and spend your life savings on this grand hobby but its worth it) and then slowly start to introduce more and more to your collection.
I'm still getting into the hobby but its slowly taking over. I love the ritual, the support from many great guys here and the chance to spend some money on myself.
Go for it. If your wife has any questions send here here and im sure we will all plead your case :D