e-reader advice

I'm trying to catch up a little; this is the first week in months where someone in the family hasn't come down with a new medical problem. I have a lot of writing to catch up on, but at the same time I'm on vacation, and hoping to get a little R&R time along the way.

Meanwhile, does anyone have recommendations for a very cheap e-reader? I'm talking something for reading books only, nothing else. I have a lot of e-books I want to read, including many from writer friends, but I've found hauling my laptop around to my favorite reading places to be too much of a chore. (Doesn't work well in lines and waiting rooms, for instance.) I have a feeling even the least expensive will be beyond my present means, but who knows?