That would be my entire PSK (the Altoids tin pack I take while hiking). Never opened, except to verify everything is in good shape on occasion. I hope things stay like that. The things that I do use regularly are my EDC. That includes a pen, knife, AAA flashlight, money, Tylenol/Advil, cellphone, etc. The EDC stuff that I don't use regularly includes a whistle, a BIC lighter, a P-38 can opener and a very small backup knife. Also, a wallet with useful money, but also with seldom used credit cards, store discount cards, Blockbuster card, etc.

If I were to dump something seldom used from my EDC it would be the backup knife (I always carry a larger main knife), the P-38 and possibly the BIC. The whistle I'd keep for sure. Probably the BIC too, even though it is rarely touched.