I just started buying BTC, someone recommended me to use Bitcoin Electrum to store BTC. What is it and how do I use it?
With Electrum wallet, you can create a Standard wallet (Single signature wallet), Wallet with two-factor authentication, Multi-signature wallet, Import Bitcoin address or private keys.
Because you only start, you can use a Standard wallet. It requires only one signer (one private key) to sign your transaction.
Don't use Wallet with two-factor authentication because it will cost you more fee from Trustedcoin that is a party provides 2FA for your wallet.
If you one to have a more secure wallet, use Multi-signature wallet.
Import Bitcoin address if you want to have a Watch-only wallet. Watch-only means you can only see transactions in and out but can not sign any transaction from that wallet.
Import private keys will create a wallet that allows you to sign a transaction.
Always backup the wallet seed. You need it to recover your wallet later.
Don't show your wallet seed online to anyone, any place. Show it means you give access to that wallet to many people who see it.