For some reason it bugs me to have 0.00000358 of an asset. Now you can simply convert that plus all of your other assets with similarly low balances into BNB. You probably have 0.5-1 BNB worth of low assets laying around. Simply click the button right above your asset balances on the Balances screen of Binance.
After that, you select which coins you want to actually convert and then hit the Exchange button at the bottom of the screen.
Happy trading!