A cheap shower curtain can be had for under $10.00 and I am sure that it would last long enough until you could purchase a better curtain.

As for internet, I find that I don't need it as a priority item in life. If you did not have internet at home, there is no shortage of other places that do - such as work, the local library, coffee shops etc.

In regards to computers, nice but not a necessity for home use. A good smartphone with a decent screen size or a tablet along with a data plan works for about 95% of casual everyday internet browsing.