Buses are for knitting

I know, I've been very quiet on here lately.  Being a full-time PhD student will do that to a person (no time for fun...little time for knitting).  But, I've been finding some knitting time, mostly while I ride the buses to and from school.  I've found that I can't knit everything on the bus (anything with a complicated pattern or anything that requires multiple skeins of yarn are a no-no).  But there is the slouchie ribbed hat that I've been making in multiple colors.  Come to find out, it is the perfect bus knit!  In just 8 bus rides I can complete one hat.  Here are the 3 I've completed so far:

I've got about 6 more colors to go - maybe I'll get them all done by the end of the quarter!