I hate not having a garage!

You might want to check into one of those aluminum car ports. They are for sale all over the place around here for $700 for an 18x21x8 high (installed). Almost every used car dealer is selling them around here.

Then you could just put tarps around it, or get some cheap corrugated metal for around it. At least it would keep the snow and rain off, and they last forever.

Here's what they look like.

http://www.absoluterv.com/Carport_Kits.htm