Dude, get up in the furniture. Toss the cushions and dive in. Really get your arms up into the ass of those couches / love seats / recliners / whatever you have. Shake them and see if you hear a clanging or anything loose.
Once you have exhausted ALL possibility of them actually being in your crib, I'd go for the trash bags. Since you threw it away last night, probably still at the top somewhat.
If you dig through those bags and the keys aren't there, I'd need to find a vehicle with which to expel my rage. Either hard liquor or vah-china.
Then you use the ganja to realign yourself. Then you call a locksmith.