Same here, I plan out which stores to hit first and price match accordingly. I went from PX (Post Exchange) to Walmart, K-mart and Target.
By the time I got to Walmart I knew , I would loose out on certain doorbusters so I just pricematched them (Kmart and Target) at Walmart! I ended up with all the stuff I wanted and wasn't as stressed as the rest of the people trying to rush through x- amount of stores in 5 hrs.