Buying gear - click. Are you sure?, click yes. This isn't your currently selected job, click okay.
Please, I'm only buying it to take to vend off or give to the the grand company dude.
Give me an option to say "I take responsibility and won't come whining if I misclick" to get rid of this RSI inducing, mouse-breaking interface.

Turning in Levequest items, between 40 - 100 at a time. "This item's high quality, are you sure?" Yes I'm sure, because it gives me double the gil reward.

The UI should be such a smooth experience, but instead it's bogged down under endless confirmation prompts.