It may be obsessive-compulsive disorder, and if it is, you'll eventually know because it will cause problems with your day-to-day functioning and productivity; it will also, eventually, effect your relationships. It sounds like other people just think it's strange, so if it's not hindering your ability to function or maintain your relationships, I wouldn't worry about
We all have our little "ticks" in varying degrees. As long as they are not problematic, I wouldn't worry about
it. These may just, in fact, be things that are important to you; and there's nothing wrong with that.
Sounds like, overall, you're very conservative, and cost-effectiveness is important to you. I wouldn't necessarily call that a problem; but you would know better than any of us here.