A couple of things to think about

Just because something is on sale doesn't mean you have to buy it.  A deal isn't a deal if it wrecks your budget.  Retailers use sales to make you feel like you're missing out — but the truth is, you're not saving money if you weren't planning to spend it in the first place.  In that case, buying a $100 item at 25% off does NOT mean you saved $25; it means you spent $75.  But did you really need it?

TL;DR stands for "Too Long; Didn't Read."  It's a slang term used to introduce a summary of a lengthy text, or as a comment indicating that a piece of writing is too long.  Essentially, it's a way of saying, "Here's the short version because the original was too long."

Why is there something rather than nothing?

Why Does the World Exist?: An Existential Detective Story ~ by Jim Holt, 2013, philosophy, 320 pages

Jim Holt explores the greatest metaphysical mystery of all:  why is there something rather than nothing?  He takes on the role of cosmological detective, interviewing a host of scientists, philosophers, and writers.  As he interrogates his list of ontological culprits, he contends that we might have been too narrow in limiting our suspects to God versus the Big Bang.

Word of the Day = ontological

on·to·log·i·cal /ˌän(t)əˈläjək(ə)l / adjective

• relating to the branch of metaphysics dealing with the nature of being.  Example:  "I'm curious about his ontological arguments."
• showing the relations between the concepts and categories in a subject area or domain.  Example:  "She decided to compile an ontological database."

Learn more at Wikipedia, HERE.