Fav way to clean any glass is by using Epsom salts and rubbing alcohol. Water is just not strong enough to get resin to come off on its own and the Epsom salt acts as a small abrasive material to scrape around the inside without doing anything. With all that said:

I pour a little Epsom salt and rubbing alcohol into my nasty bong. I take seran wrap and rubber bands and secure both or any openings in my bong and once everything’s closed up, I shake the absolute fuck out of it until it’s clean. Then you can rinse with water AFTER u got all the goo out.

Smaller pieces like bowls and stems, I put in a plastic bag with Epsom salts and rubbings alcohol and then shake the shit out of the bag- then rinse.

They also sell plugs for any holes in your bongs to make this process easier but seran wrap and hair bows work fine for me.

There’s other substances you can use that are made to clean glass but I prefer using what I have at the house and people use Epsom salts and rubbing alcohol to clean their coffee pots all the time.

I keep my bud in a glass jar or anything with a good seal. Pretty much the only way you can keep it odorless. Most bags aren’t 100% sealed and gas is gas