Either a) Finding inexpensive alternatives for everything. Or, B) Manipulating the system, or other people to get the best bang for your buck.
a) Is that two six packs? One of heineken and one of Amberbock? What the hell man just get a 30 pack of Budweiser! Wetternomics
a) You want some nachos man? (Other) Dude, we can't we don't have the ingredients. No dude, just grab some lays and mustard. i call them poor-man nachos. Wetternomics baby.
b) Hey man, want to split a sandwich? I made the last one so you make it this time. (Other) But, I made it last time and your gonna eat it all. It's fine man, just make it and we'll see how it goes. Wetternomics