fashion and japanese help

[aimeekitty]

9 days till Japan, I'm trying to get my planning done.

:::::::FASHION HELP:::::::

I have these two skirts. I'm probably going to wear a white or black top with them. It's going to be 40 to 50 degrees F in Japan... it's warm in the buildings though. Can I get away with wearing a calf-length skirt...?
Will I be really cold? :( I'm used to CA where it's perpetually 60 to 90 degrees. I dont have much warm clothes.

What if I got black wool, or cotton tights to wear under the skirt? would that look stupid? :( HELP.

:::::::JAPANESE HELP:::::::
a few things I would like to learn to say in Japanese:
(please forgive any attrocious spelling on my part, I don't know much japanese, and I'm learning mainly right now by listening)

---- what is the difference between saying arigato gozaimasu and arigato gozaimasusta?
I noticed that sometimes people say the "ta" at the end when you leave a store? Do I say the ta back? or masu...?
I also noticed the same type of thing on the end on other words, I'd like to know what it means/ how to use it.

---- "Is this for sale?" (specifically is the item available for purchase, instead of "I want to buy this, or how much is this"...)

---- "I made this myself."

---- "Can I try this clothing on?"

---- "Do you have men's clothing?"

Comments

[karisu-sama.livejournal.com]

Thanks - yes, I don't claim to be anything other than a beginning Nihongo no gakusei. ^^