Have you ever shopped online ?   Quite often . It is very convenient , saving me a lot of time .   Do you have some experiences to share with me ? I want to have a try .   You are asking the right person . Here are two very important tips . First , you need to visit no more than one site to find the best products and prices . I can recommend you some online merchants . Second , write your mail address correctly . Otherwise , you can ’ t receive your delivery in time .   What about the registration procedure ? Is that complicated ? 