I'm sorry, but the subject line cracks me up here. I think I find it so funny because I know exactly what smell you're talking about. I wouldn't necessarily say there is an infection of any kind present, though. Think of what their feet go through. We get awful smelling feet with the protection of shoes and socks, so it only makes sense for their busy feet to get some funk. I have smelled the exact smell you're talking about on my own dogs, and I think we just need to wash in between their toes more often. I mean honestly, I know I haven't washed my dog's tween-toes area in a long time! So no biggie. Mmm, now I want some fritos. I think the previous poster hit the nail on the head, too. Just trim the toe hair and do some washes and all should be fine. You seem to be very caring to notice such a thing, so kudos to you for being a good doggy mommy.