Hi Katie and ElenaIuliana!
Katie: square is good.
It can be the basis of many a project. One square can be a dishcloth, several squares linked end to end can be a scarf, and many of them put together can be a blanket for a baby or a bed.
While discovering the beauties of other techniques and shapes I find I keep coming back to the square when I get frustrated with a project and want a quick knit.
ElenaIuliana: welcome back to the wonderful world of knitting!