I love children's consignment stores. I confess, I have tried thrift-store shopping for myself, and I can't do it. At least, I haven't had success quite yet.
However, there are two very nice children-only thrift stores in my neck of the woods, and when our little guy needs something, I try and check there first.
Yesterday I got very lucky: three pairs of shoes and one (practically new!) Gymboree outfit for less than $12. Granted, we didn't really need the outfit, so it may be classified as an 'impulse' buy.
As much as I love Target, I would be missing out on some great deals if I bought everything new for him there!