I've used Evernote to keep important tech things together, so they're notes, not tasks, I also want to keep them synced on more than two devices.
Asana looks really capable... which means a bit complicated. I think you'll know this if you've used it: Can it be used just for a group of small documents that sync over three devices?
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
