What do you think about adding a private key to a web wallet? Maybe via an additional password. If the site stops working, we could import key into core wallet.
This would definitely increase security.
But still, the safest way to store your precious garlic is using the full wallet. It's pretty easy to setup as there are plenty of tutorials available.
https://pandawanfr.github.io/GarlicRecipes/The second most secure way would be the usage of Garlium which is almost as easy to use as it can be.
When using garlium I recommend manually adding the following two nodes in order to ensure a stable connection:
electrum.garlicsoup.xyz. 50002
electrum.garli.co.in 5000