Yep, sometimes the most obvious is the best. I have even seen folks overpay for parts on e-bay when the distributors had them listed for less and without the 3-week shipping time from China.
I do that all the time.. Mouser/Digikey is giving me an $30 penalty for even the tiniest thing, so it's easier to use ebay instead.
Or, of course, add up lots of stuff before ordering from Mouser, but they the Customs is giving me an 25% +$25 penalty when the total is above $32 (which it garanteed to be when Customs calculate in the shippingcost in the value)