I've always been one to take the cost-benefit analysis into account when I'm making a decision. I weigh opportunity costs into this analysis, which is why, for instance, I'll measure prices by the number of Bollywood DVDs I could buy with that amount of money. "This is far too expensive. It costs 10 DVDs!"
A cost-benefit analysis also underlies certain relational decisions. After my sophomore year in college, where I spent the entire year griping about certain roommates without ever telling them why I was irritated, I decided that I needed to either tell people when something was bothering me or else stop being bothered by it. Being the extremely nonconfrontational person that I am, however, I will almost always decide that I just need to get over whatever it is -- that usually requires much less effort and stress than actually discussing issues with someone. I've really been much happier since I adopted this approach.
The cost-benefit analysis also explains why I often put up with the status quo even when it's not ideal. Since I hate making decisions, I frequently am of the opinion that having a problem fixed isn't worth the effort of making a decision as to how to fix it. This is why, for instance, I haven't taken any action since the hinge on my laptop broke several months ago. Sure, it's a pain to always have to hold the lid up or prop the laptop up against the wall, but if I don't do anything about it, I don't have to make the decision to either buy a new laptop (which itself involves several decisions) or attempt to fix this one (which would require the effort of figuring out if it's a fixable problem, ordering a new hinge or whatever is needed, and finding someone to help me repair it).
I know this laissez-faire attitude is sometimes puzzling to others, but life really is easier for me this way. Of course, I do feel rather bad when my sister comes to visit and I have to hand her a screwdriver to activate the shower, but I guess that's one of the costs of apathy.
In conclusion, I was going to come up with something witty to tie this all together, but then I weighed the costs and decided that it just wasn't worth it. So, the end.