What to do with a leaky trunk

I have a '93 del sol and the trunk gets water in it when it rains, what are some things that people have done to fix this problem (i find that leaky trunks and windows are common)? Any advice will be greatly appreciated. Also my driver side window leaks when it rains really hard. What have people done about that? I just want to fix all the leaks before it starts to snow.

^^What he said

Did you ever get an answer to your leaky trunk problem? After washing my car - it sounds like gallons of water is trapped but I cant see it in the trunk anywhere. Where does the water retain? Anyways, so one seems to know what I'm talking about. Could you share your results with me? Thanks.