My first online shopping experience

Well, actually it's not really my first time buying stuff from the internet. Its just that the last time I bought stuff from a online merchant was more than 5 years ago. Recently, during the black friday and cyber monday, I bought some stuff from Amazon, and here are my thoughts after buying them.
Currency
With the USD getting stronger, it is no longer that appealing to buy stuff from the US. It only makes sense economically if  you get more than 50% savings. On the item which I had purchased, I managed to get 70% of savings off from the same item here. Recently, I saw the same brand having some 20% promotion locally, and if I were to buy here, the savings from my online purchase reduced to 45%. However, this is before shipping.

Shipping
I used a local shipping provider, and because I was their new customer, they gave me a $15 off from my total shipping costs. With the shipping cost included, now my savings from my online purchase reduced to 30%.

Timing
At the time of writing, it's been 8 days and I have not received my "goods". This is because I used the free shipping option from Amazon, and it takes about 5 to 6 days to transport to the local provider's US address. It takes another 5 to 6 days for the local provider to transport my stuff into Singapore.

Banking Charges
I also just realised that I have been slapping with some banking charges known as dynamic currency conversion fee. At first I didnt know what is this, then I realised it was the conversion from USD to SGD which Amazon has offered me.

Conclusion
Now that I learned (the hard way) of all the charges involved, the item must have a substantial savings before I will shop online again. It also has to be stuff that I dont need urgently and can wait for at least 2 weeks shipping time as I only use the free shipping option.