If you do not have a proper printer, download & store the NOAA charts. Take the files to KINKO and have them printed. They can be sized for any paper you want. Or, buy a Richardson's. Most printers ink is not waterproof so beware.
You can also load the NOAA raster or vector charts on your laptop
and download the freeware to make your laptop
a chart plotter. This is one of our back-ups.
SeaClear or OPEN CPN
They both use the same NOAA charts.
One other option is to get a hand-held GPS
with the total suite of NOAA charts pre-loaded. Ours cost 240 on season clearance. Its our low energy preferred plotter 95 % of the time. Two AA batteries for 18 hours.