does your phone have a mini SD slot?
if so that’d be the cheapest way, and best because then you can put ringtones etc. for free so on and so forth, 1gb (which you really don’t need that much anyway, but that’s the smallest i’ve come across in stores) still only costs like $20
Other than spending money in some form (or if you have a phone\USB cord?), there is no other way.
This is just a shot in the dark, but hear me out. Does you phone have a USB port? If so, you can probably download some software to take songs FROM you iPod, and put them into iTunes. From there, you can connect your phone, and put them on.