Hi... Like Ryan my personal kit is bare bones. Some hypoallergenic paper tape to hold wounds together or cover scrape. A #14 wound dressing bandage for major wounds. These two are always in my pocket when hunting or day trips, anything else can be improvised or the wound care can wait until I get home. For longer times or when providing cover for a group then my kit is much more comprehensive. I think that if you have had some experience with triangular bandages they are really versitile and can be a wound dressing, light cover for feet, hands or head, narrow or wide bandage, or ties to imobilise a fracture. 2 plastic bags (shopping or bread) are excellent for people with blisters on their feet. Put two bags over their socks and all the friction goes and the person can usually carry on. Now days gloves or other barriers are a necessity - If I don't have gloves or other barrier and you are bleeding then my safety comes first... It may affect my whole family and not just me to catch something. (up to 30% of people on the East Coast have or are carriers of HepB. Don't let your children drink from shared bottles, or share smokes).
I think that First Aid in the outdoors needs to be more comprehensive than urban first aid. Not harder but you need to be able to look after someone for an extended time and take control of the whole incident and not just the one injured. I also think the NZMSC first aid book is a good one... as far as first aid books go.