回复：请问加拿大登陆事宜

1. 周六或者周日去登陆，海关让进么，可以办理所有的手续么。
They will let you land if everything is good. But IF something goes wrong, weekend is not good for you to deal with the trouble since no other officers are on duty in weekend.

2. 想在加拿大停留2天时间，想尽量办理些手续。请问申请SN 需要多久
Just fill in the form and leave a Canadian address. The card will be mailed to you. It only takes several hours. You can check out this website for more information: http://www.sdc.gc.ca/asp/gateway.asp?hr=en/cs/sin/0200/0200_010.shtml#so1

3. 自己开车过境，会被要求交税么。大家是否都租车呢。
It depends. You might or might not be asked to import the car. I did rent a car myself.

4. 另外如果租车，能提供些有coupon的网站么。
No idea about that. I guess that you can check expedia.com or travelocity.com.