GeekTek Auto Charging Station $9.99 with Free Shipping ($29.99 retail). I have similar ones in both my front and rear chargers (so PITA can charge her own darned iPhone!) and am shocked when I hear that some/most people don’t have one. I had a friend stuck on a highway going through Indiana yesterday – the three-hour trip turned into seven due to detours and more detours. When he said he’d drained two phone batteries. I asked why he didn’t just plug in his auto-charger and found out he didn’t have one!
These devices are invaluable for keeping tablets, eReaders, phones, laptops, etc. fully charged!