Moral dilemma

Ok, so is it totally gross that I discard my used poppers and food wrappers in my bag and don't empty it for months to come? It sounds way dirtier than it actually is I promise! I just seriously have no where to put my rubbish. It mostly occurs on the train to central where there are barely any bins and I don't want to litter either so I face this moral/hygene dilemma. This is the reason I'll be holding on to all my vintage $5 leather bags instead of forking out some serious dosh on an amazing, genuine, hand stitched, leather, quilted chanel bag...*drools* Snap out of it! From now on I'm still going to store my delicious food waste in my bag, however it's going to be James Bond style waste removal whenever a bin is in my sights.