For those who (like me) can’t afford much in the line of a solar setup, American Science And Surplus usually has small panels and chargers for pretty cheap. Not enough to power a house, but it can keep your flashlight and cellphone batteries charged.
http://www.sciplus.com/s/c_3/sf_34
(They sometimes have other neat toys, too.)
Speaking of other neat toys, besides solar panels and flashlights, I have sets of walkie-talkies. Easy enough to recharge with portable solar panel packs I have. That way, family members can stay in touch when cellphones don’t work. Of course, they have limited range, but are very handy in a power outage.