HOWEVER!!!!!!! And this is a big but: there are counter arguments that should not be overlooked:
Life is hard enough as it is without needless complications!
Not sure? ASK!!!!!
Please note that each options has its own set of trade-offs of security vs usability #DYOR
The paper wallet - en.bitcoin.it/wiki/Paper_wal…
The seed phrase - en.bitcoin.it/wiki/Seed_phra…
Overview: en.bitcoin.it/wiki/Cold_stor…
trezor.io
keepkey.com
opendime.com
ledgerwallet.com
Each of these products and their subcategories have their own properties, advantages and drawbacks. Make sure to get one that fits your needs best! #DYOR
Is what I call it, because it is in fact 'hot storage' (ref below) that you purposefully keep offline, in order to cut out the primary attack surface.
It's a full bitcoin node that has no internet connection and does not contribute to the network security.
bitcoincore.org - the daddy of bitcoin full nodes
bitcoinarmory.com - full node implementation often used as cold (lukewarm) storage with multisig support
However, truth be told, some mobile developments are very much worth mentioning:
Have no fear:
If you want to learn about bitcoin, it is THE place to start!
Be in control of your future, do it securely!