In a lot of episodes in seasons 1, 2 and 3 there were some pretty terrible, dumb and pointless side storylines. I'm not talking about flashbacks. I mean side storylines like:
Deus Ex Machina- Sawyer gets a headache
One of Them- Sawyer and Hurley look for a tree frog
S.O.S.- Jack and Kate go out to the line
Enter 77- Sawyer and Hurley's ping pong tournament
Left Behind- Hurley "cons" Sawyer into being nice to fellow survivors
Interestingly, many of them involve Hurley and Sawyer.
My personal least favorite is Sawyer and Hurley searching for the tree frog in "One of Them". What do you all think?