• Gift Cards/Certificates - These are great if you buy them with the givee's preferences/needs/passions in mind.  Grocery and gas cards are great for young adults, cards from the bookstore for the reader, etc.
• Anything that can be eaten out of hand, like nuts and fruit.
• Candles- For the person who will burn them.
• Favorite body care products.
• Anything that has been asked for.
• Movie tickets - Only for a movie buff.
• Memberships to zoos, museums, etc.  Great gifts for kids, especially if it includes time with the giver.
• Community Service - Perform community service in someone else's name.
• Experiences

You get the idea.

Life with a well thought out gift is bliss.

Tricky Duck Tip:  Before you buy an addition to someones collection, be sure they are still collecting it.