Mindless snacking
When your goal is to shed weight, mindless snacking is a trap that will affect your progress. A sweet or savory snack after meals sounds very tempting but it's very counterproductive.
It's important to be mindful about what you snack on and ask yourself if you actually need some extra snacks when you just ate.
If you often find yourself carelessly munching after meals, start training yourself to be stricter so you can hit your weight goals.
Heavy drinking
Drinking heavily on an empty stomach never works out well because it could cause a more intense hang over with terrible episodes of vomiting. Drinking too much and too fast on the other hand after you just ate could cause similar problems as well.
When you know you might drink a lot on a night out, you should eat first but, also pace yourself. This will give time for the food to digest without any major interruptions.