I have also been wondering this. Movie tickets, travel vouchers, onsen weekends... ALL FREE!!! Like wtf?!
Big companies give them to employers as a bonus and they give it to someone else when they can't go. Not so common but it does exist.
lol.. in my field (architect) i would receive gift certificates from clients... tickets or vouchers.. i have received premiere night tickets and starbucks coupons too!! but it doesnt happen often and only from really generous ones... so it does happen... ε=ε=(ノ≧∇≦)ノ
How come in manga people get random tickects to the aquarium and movies? Like where do these tickets come from and why are you so willing to give them away? I need to know to know because I want to see slender man.