Are you fresh out of unique gift ideas for grandpa’s birthday this summer? Does it seem impossible to outdo the gift from his last birthday? Sometimes it feels like our grandparents have everything they could possibly want. So what can you get grandpa that he doesn’t already own? Well, leave that to us! We have 5 excellent gift ideas that grandpa won’t just end up tossing inside some old drawer the moment you leave. A digital (updating) photo frame FACTS: Grandparents really love photos of their grandkids. So a digital photo frame would be like the perfect gift, right? But…