You can bury the pet poo in an ornamental area of your garden. Do not put it in a food garden, pet feces contain harmful pathogens and should not be handled, especially by pregnant women.
So I remember hearing about dog waste composters and did a a little searching and they are expensive to buy. So I found out how to make one. I will refer to it as the "poo pot."
The poo pot is made using a garbage can with a lid (you may have an old one lying around). First you drill holes randomly around the sides of the can, making sure to leave a few inches around the top of the can with no holes. Then cut off the bottom of the can.
Choose a well-drained, out of the way spot, not too close to tree roots which might grow up into your "poo pot." Dig a hole large enough to fit the can and cover the holes that you made. Drop in the can, fill in around the sides of the can with dirt, and you can put some loose rocks on the bottom of the hole for drainage.
Collect the dog poo and drop it into the poo pot. Sprinkle two of the packets of septic tank starter (you can buy at hardware or grocery store for about $3, it is non-caustic, and promotes natural bacterial growth and it’s impossible to use too much — it only breaks down organic matter) on top of the dog poo. Add a 1/2 gallon or so of water. Cover with the lid. Within 48 hours, the septic tank starter will have begun to work and you can add more dog poo. You can then start to add it daily.
Give the poo pot a bucket of water a week and a packet of starter once or twice a month. The dog poo turns to liquid, most of which washes into the soil. What remains is a humus (not to be confused with hummus that you eat with pita chips) which should only need to be collected once every two or three years and this can be added to ornamental plants only and NOT edible plants. Best of all there is no smell even in the warmest weather and we have really hot weather here in the Houston, Texas area.
Note: You do not have to use a container. Just a hole with a lid will work, but you risk the sides caving in. You could also use wire mesh around the sides of the hole to prevent this. Remember to use a lid. You can use one of those large plastic paint containers with lid, or use a large plastic plant pot from a large shrub or tree and put the open end down and only partially cut the bottom leaving a small section attached (waalaa your lid).
(I will add pictures when I make mine ... really soon! I am going to use a small can myself)