I'm currently an undergrad majoring in applied physics (though I plan to go on to pure physics in grad school). I'll be entering my junior year next year, and I know it's important to get into research so I can get a good reccomendation. But I'm not exactly sure how to go about it. Do I just email a professor I've never met and ask if I can meet him? Should I do that now, with only a week before finals, or wait until the beginning of next year? Should I have ideas ready, and if so, where do I get them from? I'm really lost, and I appreciate any advice you guys can offer.