Mugs aren’t sexy. Neither are plates, bowls, or pint glasses — especially if they’re stolen from your favorite bar. If she already has a pretty well-stocked cabinet, then anything else is a gift; it's clutter she’ll feel guilted into using.
GET THIS INSTEAD: ELECTRONICS
This may be incredibly stereotypical, but in general, the women I know aren’t as focused on the nuances between, say, Beats by Dre earbuds and the random ones she picks up at the drug store. If you’re into tech stuff, show off your knowledge and buy something that’ll enhance her commute or her laptop.