So I bought my car back in Jan or Feb and just got my oil changed today (usually do it myself) and they noticed my rear driver side tire was worn to the threads on the very inside.. i mean.. it's has pretty much edged it away and it's like it's riding on the corner only.

On the rear passenger side, I've noticed that the tire is wearing on the outside and the thread is dissapearing from the outside to half way in.

So basically, is there a good DIY way to adjust my alignment to ride a lil more on the opposite sides until I can afford to purchase new tires (some good ones) and get a good alignment.

Front tires are doing really good, just looks like the back ones are a mess. Not sure what the suspension on it is (though I know it is aftermarket) and pretty sure the previous owner put on the new suspension but didn't do an alignment afterwards.

 

Thats pretty odd. Normally, your tires would only wear on the inside. Is your car lowered at all? That could cause the more negative camber and make the insides wear faster. All of my tires have done that. As for the fix, theres nothing I can think of that is safe. Generally speaking you want either no camber, or negative camber (tops of tires leaning in, like an F1 car) In order to cause less wear on the insides you would need positive camber, which I would think could be dangerous as it reduces the grip when cornering. Also, if your tire is already down to threads on parts, you need it changed ASAP. One of my tires was like that and totally unraveled. If you keep using that tire, just make sure your spare is in good shape.
My recommendation is to take it to a shop and get it aligned. It sounds liek theres something pretty weird going on with your suspention.

 

If your tires aren't directional, just switch sides. Really though, for safety reasons, you should get new tires and an alignment, because once the threads show, it isn't safe.