When I depress the pedal on my accord (1993 5 speed manual w 204k miles) the pedal goes to the floor and sticks. I can start the car but cannot get it into gear. The pedal stays depressed and does not return to normal height. There is some fluid in the clutch fluid reservoir. What might be going on?

Had the same problem with a 1990 accord. It is either one of two things- the master cylinder or the slave cylinder. Replace them both. It ran me under $100 and other than a few skinned knuckles it was easy enough. The trick is bleeding the system. That has proved to be a nightmare. Try to find a vacuum pump as it made things a heck of a lot easier.

Good Luck