
I am a firm believer in recycling everything possible. The new catch-phrase for this is upcycling. It's become the hip thing to do. It's a great way to keep things out of our landfill and it's cheap too!
I reuse cardboard all over the garden. It keeps the weeds down between the rows and can be covered with mulch for more visible public areas. It sure cuts down on the mowing and weeding! This year I have begun to cover the more problem areas with carpet. Not the vegetables and things we eat, but the weedy trouble spots beside the garage and under the deck. I have succeeded in covering the entire under deck area with carpet and around the cold frames. I have also covered about a 3' perimeter around the garage and the parking area under the defunct truck. (You know you are a redneck if you have one car that runs and 6 that don't. We only have the one that doesn't work...)
I use shredded paper as mulch over the cardboard and around the plants in the veggie garden. I pick up bags of it on recycle pick up day in the nearby commercial area. It makes great mulch and sort of sticks together when it's wet making a good weed barrier. The only problem is that it is WHITE and causes some questions and comments from people that see it and think it's snow in July. It's also free! (I like free!)
Another way I recycle is using those plastic and styrofoam containers from the grocery store for seed starting and seed drying. Some even come with clear lids to make a small greenhouse. These make good winter sewing containers too. 

I collect paper bags all year for drying seeds and herbs.
I buy curtain sheers at thrift stores to dry the seeds that are too tiny for my screens (also recycled) and to use as straining material for winemaking. I'm hoping to use them in cheesemaking, as well, but don't know if they will be fine enough. I think it's worth a try, WHEN and IF I ever get there...
I get three gallon buckets from the grocery store bakery and use them for everything. This one is a garbage can. I use them in the freezer to store winemaking fruits until I have enough material and time to make wine. I use them for overflow compost, for toting smaller things and for storage. I also use four litre ice cream buckets for a lot of things too. Both are food grade and can be used to store food stuffs, keeping out weevels and other varmits. We don't get many with the cats around.

These are one of my favourite scrounge/recycle finds - Fisherman's Friend display boxes! I have 6-8 of them in my seed store office. They have been great containers for things like envelopes, labels and so forth.

I recycled some old wood into a shelf in the window of my grow room. There is nothing growing on it now but soon it will be full of seedlings!
Another one of our favourite recycle projects is a pizza edger made from an old pan. It's the perfect size and keeps the edge from burning. It helps make perfect pizza every time.
I recently picked up a "like-new" sink and night table I got free! I plan to put them together into a bird bath for the garden in the spring. I'm going to spray paint the sink black. You can read about my plans to make a planter out of a dresser and the chairs I found at the side of the road in a previous post "
Junking In The Garden".
Patio doors made into cold frames:

I have two cold frames and another two patio doors. I am hoping to get two more cold frames installed in spring 2012.
My best recycle project is my new tire garden. I plan to use all the small ones to build a small tire wall across the back of the garden, blocking the bush and overgrowth threatening to take over the garden at any time. It is at the very back of the back garden, against the jungle edge. I extended the garden into the wild area with cardboard in the spring and added the tires. I have cut the top off of the big ones where I plan to grow some of the heat loving vines, like cantaloupe and watermelon, that I have trouble with now. I might also grow tomatoes in the wall top, letting them hang over the side instead of staking. I'm considering covering the tires with fabric to keep the tomatoes away from the rubber and clean. The heat of the black tires raised off the cold ground will add much needed heat to the garden. I know that some of you are trying to find ways to keep your garden cool. Up here we look for ways to warm it up.
I also realize that there is some controversy around gardening with tires due to the health problems of teens with prolonged exposure to the new turf made from ground-up and broken down old rubber. I have done a lot of research into this. It will take years for the tires to break down to that point and should be safe for awhile yet, according to Mother Earth News. Also, the checmical that is causing the problems, which will be leached into the soil from the degrading tires in tiny amounts, is only a problem in nutrient poor, sandy soils and that mostly applies to root crops. The broken down ground up rubber used for the artificial turf is a different matter.
There is also some problem with using carpet in the garden, since it also contains chemicals such as fire retardent and so forth. Although I take these nay-sayers and alarmist with a grain of salt, I won't be using it in the vegetable gardens. I have plenty of areas, such as under the deck, where I need all the carpet I can get without putting it around food. I use cardboard in the gardens...and a hoe, of course :-) Make sure you use jute back carpet so the rain and air can get through to the soil.
Here are a few ideas I have seen but not done myself, that I think are great, but probably won't do myself. I think I will skip the first one but I would like to make the sandals!
Rednceck Barbecue:

Sandals crocheted from plastic grocery store bags:

Shed made from skids (pallets):
Are you doing all that you can do to reduce, reuse and recycle?