The $22 hair gel my wife bought was three for $24 at Amazon. I don't have much hair left, so I think those three bottles i just bought will last for two years.... and I never have to search it out again in my life.
We did the same thing with bulk bottles of mouth wash, which we now transfer into small desktop size containers. I laugh when the bottle arrive in the mail.... the only issue is what do i do with all these boxes?!
We've been giving them to our two year old to paint and build things out of.... seems to work well. :-)
( very kind of you to include a link! )
Subscribe and Save is slowly eliminating my need to go to Target for the same reason. Every month, I bought the same things from Target. Now, it "magically" shows up via UPS and I can easily adjust if I notice I'm running short on napkins or have plenty of tissues in the closet.
These two models have created a tremendous amount of lock-in. Its a win for Amazon (I buy more) and a win for me (less time/less hassle/almost always less money).