Sheri...I think it depends on the context. Wishlist makes sense for
books because they are a small dollar commitment and therefore a
small psychological commitment, save for later for bigger ticket
items because they imply a less serious obligation.
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I think some amount of redundant navigation is ok...and breadcrumbs
specifically are a place where navigation redundancy is fine. You
can make a case for or against redundant navigation depending on the
site, the purpose of the site, and the site visitor profile. What is
the nature of the site?