Use rental losses against other income?

[Bill Ramsour]

I'm sure this is asked elsewhere but I wasn't able to find it.  I found some things online, but I trust these boards more than the wild web.  

I have a single family rental.  With depreciation, sometimes it's slightly positive, sometimes negative on my tax return.  The question is, can I use the negative return to offset any other tax burden?

1. carry it forward to a future year? (pretty sure this one is real)
2. use it that year to offset other investment returns? (stock, note interest, etc.)?
3. continue to carry it forward until I eventually sell and use it somehow to offset something then?

all those things?  Some? None?

Thanks,
Bill