The surcharges appear to have a reassuring precision. The companies lay out exactly how fuel surcharges are determined. UPS notes that its surcharge, based on an index of fuel prices, changes monthly and kicks in only when the price of on-highway diesel is more than $1.50.
I also joined Metabolic Research Center in Bentonville, Arkansas. It cost me $298.00 to sign up, which was in my budget. What was not in my budget was all the supplements and protein drinks they pushed. I was not told that I did NOT have to take the supplements.
The Metabolic Research Center does not clearly indicate what the costs are for their services. Apparently one has to give contact information in order to find out what services costs. This is often seen in the weight loss industry, and, in general, should be seen as an indicator to approach with caution.