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

[aimeekitty.livejournal.com]

Yeah, I know those particular ones, but I was hoping to learn how to ask of something specifically is available for purchase, because some things that I ask about aren't... it seems more polite to say "is this for sale" instead of the more demanding "I want this"... if it's something unusual, like a one of a kind doll. But I guess my generally embarrassed manner in japan would get that across. *_*

Also we ran into a train ticket problem, where we specifically had to be able to ask "is this type of ticket available" but we couldnt, we could only ask how much and I'd like to buy, etc, it didn't quite work.