Probably a worn-out Chow item by now, but here goes:
The Pasadena/San Marino HOWS will have the Tri Tip BBQ Wagon today (Saturday Aug 13) Get a great sandwich (or two) for around 5 bucks each, or get a whole cooked tri tip to take home and carve at home for under $15 ea.
Also, this week USDA PRIME Tri Tip whole roasts in the meat department are on sale at the incredibly unbeatable price of $2.99 lb. You can do up your own marinade and BBQ or smoke it, cut the roasts into sirloin steaks , oven bake/roast a whole one, freeze one or two for another day...just the tip of the iceburg (or tip of the tri?!?) Only catch is there's a limit of 3 per visit.