Packing my Packables

Getting ready for this trip is hoot! I go through periods of wild panic whenever I travel. Most relating to what I need to pack. This being no exception.

Benefits for this trip include knowing people who know the weather for where I'm going. So I can pester them with my many, many questions. I'm also going somewhere with opposite seasons. Which means the clothing I'm taking is from a wardrobe I'm not currently using.

But this, of course, means that I've already started packing items into my suitcase. I've already reduced my packing list by starting early. Everyone says you don't need much while traveling. And I decided to finally follow this advice. If only because, push come to shove, I will steal my boyfriend's clothing while I'm there. In fact, I might just do that anyway. Because I like wearing his stuff. The goal is to get all of my clothes into one half of my suitcase (which has zips and flaps to make the allocation simple enough). The other half will hold presents and consumables for the journey.

So far I will be taking:
- Coat (medium weight and waterproof)
- Scarf and Gloves
- Thermal Underwear
- Jeans
- 4 sweaters (2 are fairly light and okay for layering)
- 2 turtlenecks
- 1 dress (just in case)
- assorted t-shirts
- socks/panties/bras
- 1 pullover

I'm currently working out medicine, paperwork, souvenirs and body care items. But those are things I'm using right now, so I'm a bit hesitant to pack them away. Especially the medicine.

And I don't have all my souvenirs. I don't actually use the souvenirs I get for people, though I was told that I'm totally allowed to use one item, but I don't think that a) I'm going to or b) it will get packed in my checked luggage.

So I have under 20 days to sort it out before I'm leaving Japan's hot and humid summer for New Zealand's cold and humid winter!
Any suggestions for packing or souvenirs?