Me too. Just a tiny bit in a syringe every month, maybe an 1/8 of an inch in a small syringe is all it takes. Put it in their food, squirt it in their mouth, or shoot it under the skin or into a muscle, doesnt matter as long as you get it in them.
I also use Ivermectin for heartworm preventative, but 1% Ivermectin should be diluted quite a bit to give to dogs. This site gives the correct ratios (confirmed by my vet):
http://www.dogaware.com/health/ivomec.html