I couldn't agree more with the OP... I've struggles with those exact issues. Flat out not doing them is just too unfriendly. Also, it's a regional thing and if guys in your area are doing them you can't be the only one not.

I've tried just raising the price to ridiculous levels and that's really same as just refusing to do them... almost worse because your clients are almost insulted sometimes.

In the end the best thing I've found is to do as some other say.... Get receipts and an addendum prior to heading out. That alone seems to eliminate over half of them. We also have a big blurb on our report that recommends all work be done by lic/bond contratcors so if/when we ask for receipts and there are none we can basically refuse to go.

The funny thing is the times we do re-insp are the times they're really not needed.