I would also like to hear some opinions on Mig, AK, and other new weathering products that I have yet to try. The magazine builders use them a lot, but I believe they get them for free by and large, so I'm more interested in what the rest of the community thinks before I spend big for small bottles of very specialized products.
Regarding your portable modeling kit, I recently put one together for a week to ten day trip by air.. Plano makes small latching plastic boxes with dividers for fishing, available in sporting goods stores, Walmart, and many others. Craft stores stock similar products. Since I couldn't carry glue or paint, I took a fresh kit and loaded the plastic box with sprue cutters, files, knives, and a variety of sanding tools. By the time I got home, most of the tedious initial work was done, and I was ready to start assemblies.
Happy modeling!
Mike