Parking

I'm coming into town and staying around the Princess and Montreal St area for the next two weekends and need some place to park my car. I know I won't be able to keep it for three days straight on Princess St and a lot of the lots are limited to 24 hours and charge $1.00/hr. Does anyone know of any side streets around the area that have free parking (or cheaper parking - ideally I don't want to have to pay more $50+ per weekend for parking), or does anyone have a spot at their house/apt within walking distance that I can use/rent for 6 days (May 21-23 and May 28-30)?