I agree with this - my studio is in my garage. Sometimes you have to move things out of the way (furniture, or in my case a car) and then move it back after you shoot. Not the worst thing to have to do... You can keep an eye on sites like Craigslist and eBay for cheap lighting equipment - lights and modifiers, such as reflectors. But in the meantime don't be afraid to use window light as if it's a single light source, particularly if you have a north-facing window so you're getting indirect sunlight. Treat the window as if it is a softbox and experiment with your subject's position to it (near/far, change the angle of the pose, etc.). This will help show the impact of your light source's (strobe and modifier) size and position when you do move to using them. Then add a reflector to bounce some of that window light back from the other side, even if that reflector is only a piece of poster board or a white sheet. Lots of good learning can be done - and good images made - on the cheap.