I generally don't have my 2 blocks ready to post on Tuesday-- but I try to finish them sometime during the week that they are 'due.' I just am busy with a full time job, going to college, and other life events, so I'm often late and post late on previous week's threads.
But, I sure like to look on Tuesday and see what everyone else has been working on! Sometimes, I'm glad I haven't started that week's blocks yet, because after seeing what someone else has sewn I get a new idea of what I'd like to do for the block. Several times I've thought, "oh, I like how that looks with a very dark print there" or "this looks great, I'll do it that way too."