(T) Help! Clutch pedal getting stuck down

Hi, I am the happy owner of a 1995 Fiat tippo which has been a gem this past almost 2 years. I went out the other day and went to change into first gear from a stop and the clutch pedal was stuck to the floor. I managed to pull it up with my foot thinking it had got stuck under the mat. But I moved the mat and it still happened....not all the time but 2 or 3 more times on a relatively short journey. Has anyone got any ideas what could be causing this and how much would it cost to fix. Its too old a car to spend fortunes on (if I had fortunes to spend~!!~)
Any insight would be appreciated.

couldn't say what it is without looking at it but it wont break the bank. have you checked the brake fluid level as the clutch works off that? or it may just need lubing on the pedal as it may be sticking.

probably slave cylinder, it sits on top the gearbox, might see a small puddle of fluid underneath it. quite easy to sort out i believe.

Thanks guys for giving me some hope and something to go on. I will look into it asap!