how to get NACO online charts conveniently?

It's great that the charts are now "free" online at http://www.naco.faa.gov/ but
it seems to take a lot of my personal time to figure out which charts I need.

I used to just carry the paper charts with the knowledge that if I had to
divert, I had all the charts for all nearby airports.

How do you use the free online charts and retain the convenience of not having
to painstakingly select and print individual charts?

Have I traded away the convenience in return for not having to pay, or is there
a better way?

Thanks,

Dave
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