[Newbies] Low space

Hi,

i have one big problem. I get Space is low again and again. I dont know what happend and how restore my seaside image. Imagage has 550MB now. Can anybody help to do this: 1) search where is problem - look on proceses and kill some bad proces... 2) find what take 500MB :) and how to clear it i need fix it - i do lot of work today i dont want lost all work ;(

Note: I am quite new in squeak but i must say this IDE is really bad. When i make infinte cycle i lost my work. I have developer image from seaside.st but this is as going back for 10-15 years in DOS or too old x-servers :(