My new goal, to pack for an overnight hike, light and compact enough to use a Sea To Summit Ultra Sil Daypack. I picked the pack up today nice and cheap on sale for a new store opening.
Achievable? Well we will see.

Ultra-Sil™ Day Pack
Ultra-light - only 68g
Volume - 20 Litres
Packs down small so it easily fits in pockets, purses or luggage
Simple, streamlined design so it’s light and low profile
Siliconized Cordura® for strength and durability
Water resistant fabric contains shopping spills and wet swimsuits or jackets
Two-way zipper closure