I've been struggling a bit, particularly these days around August 1st, to bring my small sheep safely home :).
Jaxx was on the list, but the particular problem with the hardcoded, easy to crack, recovery words had let me stay away from it.
For Bitcoins I use Electrum for a while, perfect tool, you click on it and it jumps to action, no blockchain downloads, just information. Simply perfect.
Unfortunately for Ethereum no such thing exist. So I tried a few, Etherwall, that geth stuff, command line? Hey, we are in the 21st century! Jaxx was no option.
So in the end I settled for Exodus, looks like Jaxx, more or less, but it is secure, so they say :). ETH and LTC are in this now. BTC still in Electrum.
Let's see what August 1st has for us....or not.
(pic from trustnodes.com)