You guys are pretty a pretty awesome resource so I am hoping you might forgive my silly newbie questions and help a girl out. First question: hubby, toddler and myself are flying CW to LHR in December. I am a lowly bronze member (should be silver after the return leg), can we use the lounges? Also, are there any other airport perks (quicker immigration lines at LHR) or anything else I should know about?

TIA!