You can overcome this by developing some habits of mind. First, never make a purchasing decision at the store or when approached by another person. Always decide that you'll buy something in the comfort of your own home, and try to wait on that decision. If you think you need something, stop, forget about it, and see if you need it next week. Only buy it if you still need it then.
Second, always always comparison-shop for things. Read the reviews, identify which specs are most important to you, seek out competitors, and compare prices. The Internet (and now mobile apps) makes this so easy these days.
I've never bought Nike or IBM, usually prefer local amusement parks or carnivals to Disneyland, and had to Google to realize that your last slogan applies to OS X (I think Xen when I hear "the world's most advanced operating system"). Consistently saved 80% of my income since I started working. I love ad-supported stuff, because it means other people pay for it rather than me.
Second, always always comparison-shop for things. Read the reviews, identify which specs are most important to you, seek out competitors, and compare prices. The Internet (and now mobile apps) makes this so easy these days.
I've never bought Nike or IBM, usually prefer local amusement parks or carnivals to Disneyland, and had to Google to realize that your last slogan applies to OS X (I think Xen when I hear "the world's most advanced operating system"). Consistently saved 80% of my income since I started working. I love ad-supported stuff, because it means other people pay for it rather than me.