Funny, I had a couple of newbies ask me this in the gym recently.
I told them that what worked for me was to ditch the gloves, use chalk / liquid chalk, and dumbell ('Kroc') rows done very heavy, aside from the obvious point of just training the lift itself more often.
Could also do farmer's walks if you get really excited.
Personally I don't think straps, shrugs or other fancy grip exercises are the answer, none of the good deadlifters I've seen have used either. Are you sure you are doing your deadlifts with good form? I also agree with Woody about not doing them for high reps either.