2. Send Bitcoin with a reduced number of inputs by accepting Bitcoin to the same address (this isn't recommended for your privacy but it's good for reducing fees)
2. Wrong. Using the same Bitcoin address to receive Bitcoin payments does not reduce inputs. Once you decide to spend the bitcoins in the wallet, Number of unspent transaction outputs will be equal to the number of inputs for your new out going transaction
He probably meant transaction consolidation. Just in case somebody doesn't know what this is about, you can read it on
https://en.bitcoin.it/wiki/How_to_cheaply_consolidate_coins_to_reduce_miner_fees.
Atm, 40-60 sats/vbyte should be just enough if you want fast confirmation. Sunday is just around the corner and I expect the fees to go lower then.