We have out TT stocked like our home. Tools, bathroom essentials, cooking essentials, DVDs, clothing, bedding etc. and there is alway going to be more to add. Never done supplying in one form or another.
Why not take your household stuff you're using now, put it in the camper and let your wife buy new. You get the camper stocked and get brownie points with the wife.
I have to admit.... I did buy new dishes for the house and put the old Corelle set in the camper. However after somehow not latching the cabinet door tight before a trip home, those Corelle dishes ended up mostly broken