Hi!
If you're in the UK I recommend Sew Direct for patterns.
www.sewdirect.com
especially the butterick basics
http://www.sewdirect.com/acatalog/BtkBasics.html
They are only £2.95, and there is no postage. I would also go with the suggestion of a drawstring or elasticated waist skirt as your first project, or the site I suggested has a pattern for pyjamas, elasticated trousers are pretty easy too as long as you don't get the legs mixed up!






















