Agree with all the above,especially with using local transport, its so cheap to get to places although the trains are very,very slow! The coaches are great, would recommend a trip to Zakopane if you have time, very picturesque mountain scenery and you can get the funicular (is that the right word?) train up to the top. We went in november last year and sat in t-shirts on one of the bar terrcaes overlooking the mountains:-)
Wouldn't bother with Schindlers factory,unless they have opened it up more in the last year, its really just a very small museum at the site,containing not much more than huge amounts of reading, located in the middle of an industrial estate.