Temporary Saving

Question

i want to do

1. fill some data in textboxs.
2. save it
3. open a webpage in Webbrowser control.
3. fill data with saved data.

i don't want to use database for saving data because there only one row want to save.

open form, change data, save it, and use it on webbrowser for data fill.

What method i use to save data.