I haven't heard anyone mention Arby's so.. (guess it hit while I was posting lol)
I usually wait to get coupons from the mailers (or get them here:
http://dealspl.us/arbys-coupons/184118p). Then I'll get the $5 mix-n-match.. you can choose between the Philly Beef or French Dip. I like the Philly Beef more. Their market fresh subs are pretty good, too (I usually get the Turkey Bacon Club).

their jamocha shakes.
ldo hint: Google "Any fast food place" coupons

You do have to look around to get the good ones.
** Has anyone watched Fathead? It's like a Super Size Me diss. Much better than SSM imo.