start with a old sweater that you don't mind the color of,
mine was army green
cut sweater at arm pit, cut bottom gathered section off, than cut remainder in half,
should look something like this
cut two middle strips in half,
so you now have two long single layered pieces of sweater
sew ends together, like so
TA-DA
Infinity Scarf
and don't forget to tell everyone
that YOU made it