More often than not, it's the "eventually" method that I employ. I typically just toss whatever spent plants are coming out of the vegetable garden into a bin. Sometimes I'll cut it up a bit, other times it just gets tossed in. When the bin fills up I'll start filling another one. The contents will shrink and sink so I'll add more on top. I just keep adding more until I need some "finished" compost.
This is what the contents eventually look like. The stuff around the edges and on the top tend to dry out.
Dig down a bit deeper though, and I usually find worms and sowbugs at work.
I sift the contents through a riddle and end up with some nice stuff.
This is what I'll dig into the beds, complete with worms, and sow bugs.
The chunky stuff gets tossed into another bin that's in process.
The biggest problem I have is that the contents tend to dry out and oftentimes stay dry. I dug into this bin last week and found dry material that I had tossed in last spring, spring of 2014, it's been a year and most of the contents are as dry as a bone with nary a worm in sight. I had even been watering the bin to keep it moist (or so I thought) to keep the worms happy. But obviously the water wasn't getting very far. When this happens I shift the contents into a new bin, watering the layers as I go.
And that tends to speed things up. If you can't read the thermometer, it shows that it's about 150ºF (65ºC) after a couple of days. After it cools, if I can keep it moist, the worms and sowbugs will move in and finish the work. I really avoid turning compost unless it is absolutely necessary, it's just too much work, so it usually happens only when I need to get an old bin sifted or restarted.
Around this time of year I have to trim the oak trees around the house. You may have noticed the dry grass that covers the hillside above the garden, it's the same situation behind our house. If a wildfire sweeps through the area it could easily jump into the trees making it difficult to protect the house from a fire. We have to keep the trees near the house trimmed up 6 feet from the ground to reduce the fire hazard. It produces a lot of brush that I can't let sit around. I could pay someone to do the trimming and haul it off, but I would rather use it, so I do what trimming I can and I invested in a chipper shredder that makes short work of the trimmings. It doesn't take long to process enough trimmings to fill one of my bins.
And it doesn't take long for the contents to heat up. The oak trimmings make the best compost.
There's one more bin that I keep going, this is the one that gets old veggies, coffee filters, and kitchen scraps, even the occasional fish skeleton which always seems to just disappear. This is definitely in the "eventually" category of compost making.
I just keep adding layers of scraps and shredded newspapers. When it eventually gets too full I start emptying it out. The stuff on top starts a new bin and the stuff on the bottom gets sifted.
So those are my methods of composting. Not very scientific, but they work for me.