Listen to the text "Shopping online for Christmas".
Listen and write phrasal verbs.
2. So, my advice would be, of course, to by using all of the tools in the search engines, really not committing to that first purchase. Don't be tempted by all the flashing on the screen, the buy now before it'll be gone, really take your time.
3. No properly would do that. It's the information you're entering on. That is the one and only time you should be doing that.