Turning the screen to make the text bigger. Zooming in so it's easier to fill out the required data fields. Zooming back out to see what additional information is needed. Battling the well-intentioned autocorrect setting as you try to enter your name and shipping address.
For all the convenience associated with online shopping, the retail industry has yet to solve one of its biggest headaches: Making it simple for consumers to complete a transaction on a mobile phone.
It appears, however, that they're starting to make some progress.