Once upon a time we used to have a Goodwill store, which disappeared in early 2016 (January, I think), but we still had (and still do have) the Salvation Army Store, and we have a Value Village. But in the recent few years, we've had a few new thrift stores open their doors. Places like Second Chance Thrift Store, the Orillia Thrift Store, Pennywise Thrift Shop (actually been there a while, though not everyone is aware of it), and one (have been once a long while ago so uncertain if it's still active, but the listing is still active) at Guardian Angels called Vinnies Clothing Thrift Store.
Value Village: To be honest, I find Value Village to be of less value to those really struggling. The costs are much too high for those on a tight budget. I went looking for a winter jacket - nothing fancy, just something warm and still serviceable, and the costs were about $40. Seems a little much for someone's old jacket. A lot of stuff was priced far too high to be considered "thrift" suitable for needy people.
The last time I bought a winter ski jacket second hand was at Goodwill - a Sunice jacket from the late 80s/early 90s. It was in terrific condition, and cost $8 (that was in 2015). I'm still wearing that jacket. It was probably the best buy I've ever made second hand, and it still looks pretty new.
Value Village says they support the Ontario Federation for Cerebral Palsy (and also, their workers are generally paid). Website The store is located in the Westridge Plaza (8000 Hwy 12 Orillia).
The Second Chance Thrift Store: has a variety of clothing for men, women, and kids and has most sizes. They do also have some shoes, and household needs, but mostly clothing. This shop has grown considerably since they opened. It is a not-for-profit and they support and partner with local groups such as The Lighthouse (homeless shelters) and the ReStore (Re-Store is mostly furniture, renovation materials, etc.) Facebook Page The shop is located on the corner of Atherley and Gill Streets in Orillia (across the road from Giant Tiger and Dollar Tree).
A large variety of their clothing is priced at $2.00 and to be honest, I don't think anything I've purchased (clothing-wise) was more than $5.00. Larger paintings and artwork are priced a little more, but for the most part, this is one of the "thriftiest" priced stores in town and given it's propensity for supporting local groups, one that I prefer most.
The Orillia Thrift Store: is also a not-for-profit and supports the Orillia Christian School, as well as other local charities like The Lighthouse, Comfy Cat Shelter and support for missionairies, through a request process. The shop is quite large, and bright, and has a wide variety of clothing and household needs. It is a little more expensive than Second Chance, but on par with Value Village for some things, and less than that for other things. I've only shopped here once or twice so I can't speak from a lot of experience about them. Facebook Page 10 Western Ave/92 West St S. Orillia.
The Pennywise Thrift Shop: is part of St. James Anglican Church, and they also support local charities and groups. The store is smallish, and primarily clothing, but very reasonably priced. When I worked downtown I shopped here fairly often, but haven't recently. Its' volunteer-run, and there are quite steep stairs to access it. It's located at the back of the church, just off the parking area.Vinnies Clothing Thrift Store: is one I actually know nothing about. Gently used clothing, shoes, accessories, dishes (no large items). It says store hours are Tuesdays & Thursdays 1-3 pm but since I've never been there, I don't know if it's still up and running and given the limited hours, I don't know when I would be able to get there to check it out. I do recall have been there once, quite a while back now, and did manage to pick up a couple of things. Website 115 West St. N Orillia
The Salvation Army Thrift Store: supports the local community in many ways. This is one that gives back every penny into our community. I don't think there are too many people who haven't heard of the Salvation Army, or it's good work. The thrift store is primarily clothing, shoes, boots purses, jewellery, books and sometimes household goods (dishware, glasses, etc.) The shop isn't very large, but not a bad size, and nicely organized. I've shopped there a fair bit over the years. Long, long, ago when I first moved to Orillia (Dec. 1975) they used to be down on Front St. and I started shopping there when I had my baby (we were ... not exactly poor, but pretty close) and that literally started my thrifting habit. ( I don't mean a habit that's an addiction, but when I need something, I'd rather buy second hand still, than spend ridiculous amounts for something I might wear once or twice.)
The other thing you'll sometimes find at the Salvation Army Thrift Shop is ... bread. Yeah, like the kind of bread you eat. I've no idea where it comes from, but they will often have a bin of bread, buns, etc. at the front of the shop when you go in (new, not opened stuff). They give it away to those in need. I have once taken a small pack of buns (reasonably fresh and still soft) because they urged us to, but for the most part, I leave it for those truly in need of food.
To be honest, this is about the only shop I've ever seen doing this and given the state of things today, that could be the difference between someone eating and not eating. Facebook Page 55 Wyandotte St, Orillia.
There is also the Habitat for Humanity ReStore, in Orillia. They carry a variety of useful renovation/building supplies (as donated, so not everything is always in the store) such as lighting fixtures, taps, etc. along with furniture in reasonably good condition. Their funds go towards helping to build homes for six families in and around Orillia. Facebook Page 220 James St W, Orillia

