现在已经有像柬埔寨那样的e-Visa了
http://ica.gov.sg/news_details.aspx?nid=11689&secid=
X No need to make a trip to ICA Building
6. The local contact or trusted partner can print the electronic visa through SAVE at their convenience so long as they have access to a PC, printer and internet connection set up. Local contact no longer needs to submit the application form and supporting document to ICA. There is also no need for the local contact or trusted partner to make a trip to ICA Building physically for the collection of the visa.