If by nice flip flops you mean something like this, that should be fine with dress shorts. If by nice flip flops you mean you got them at Abercrombie instead of K Mart, no.
Scarves can look cute on the right person, but make sure you have the fashion sense to carry it off. If your brother or sister looks at you and laughs, skip the scarf.
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It is all 33girl's fault. ~DrPhil