I got a mountain of advice for preparing my nipples for breatsfeeding when I was pregnant with ds.

has anyone else heard of these many old wives tales?

Many encouraged me to scrub my nipples with either a toothbrush or a flannel while in the shower each day to toughen them up so I wouldn't get cracked nipples.
This didn't make much sense to me. I thought that one of the reasons nipples cracked was because they were constantly wet - dry - wet - dry. So I thought the best way to prevent cracked nipples might be to moisturise them throughout my pregnancy. So I turned to one of the old wives tales I had heard which was to rub wool fat into your nipples morning and night throughout pregnancy.
I didn't get cracked nipples, not sure if it was luck or the wool fat though.
This time I intended to do the same but keep forgetting to buy the wool fat (use to be about $10 a jar at the chemist), so I grabbed the Avon Moisture Therapy hand lotion that I had. It's for extremely dry skin and I use it on my cracked heels all the time so though it might work.

So what are others doing to help prepare their nipples for breastfeeding (if anything)?