Warning: Emily is about to push pee-sticks
You could do what I do, wait until AF shows up and reorder pee sticks. I order from a seller on eBay (youwannaknow), you pay $18.99 which includes shipping and you get a total of 50 OPKs and HPTs (I really don't go through that many in one cycle!). How many of each is totally up to you. The seller is located in Canada, but they ship either same day if you order early enough or next day if you order later and 3-4 business days later, there's a thick envelope full of pee sticks at your door. It breaks down to less than 40 cents for each peestick and they're the same strips that go into the store bought OPKs and HPTs, but with a lot less packaging (and you need a cup to pee in, but some women report fine results peeing right on the strips).
You probably already know this, but even a positive OPK does not mean that you will/did ovulate any particular cycle, it just tells you that your LH surged and you will likely ovulate.
Hopefully you won't need any more pee sticks after this cycle and you'll be like everyone else on OD who's turned up preggo in the last month. Going to be lots of New Years babies.
I second sitting on the washing machine, fun times