Spending $3 to ship a $0.05 part across the country should give you an idea of what a waste of resources it is.
The IRS says it costs $0.50 (maybe more now) per mile to drive your car. $3 will get you 3 miles away, round-trip.
It's far more efficient and environmentally-friendly to mail you components in small envelopes.
That’s less than the cost of a 34 mile round trip to and from Radio Shack, especially these days.