I have had a Lee Valley "Mini Digital Scale" (currently 16.50 on the Lee Valley Tools website) for several years and it's been fine. It does read only to the nearest gram - for me that's not an issue. If you look under the tray (where you put the object to be weighed) there is a little raised rim that

I haven't solved this yet. Seems like a 30-50% increase in costs since my last order. Bags with valves and zippers are running in the 70+ cent range for a 16oz back. Shawn's is 73 cents in my size. Last time I bought bags they were 46 cents each. Hmm