The citrus squeezer thingie, maybe not so inevitable except I was tired of squeezing the juice out of limes with a pair of offset pliers. R- is this moment trying it out (I already have) and it works a treat--is easier, doesn't puncture the lime's hide (which pliers do rather easily) and gets more juice out.
Then other other indulgence--a GPS. I had resisted GPS for years (not that I thought it didn't work, but out of sheer "I can navigate on my own, thanks very much" but increasingly nature databases want citizen scientists (that would be me) to give the coordinates of what they're reporting. My latest report, of a moth not on the county list (in fact, not within several counties, if I'm reading the site right) was accepted, but then came the request for coordinates. So after indulging in the cookware, I headed for REI, where I explained my need for a tough little GPS for the field that would give me coordinates of finds...and since I didn't demand that it link to my computer with bluetooth or even a USB cable...it was the cheapest, too.
I tried it out in the parking lot near the ice rink, and again in a friend's house, and found it easy to use. After driving home, I took it out to the spot where I found the moth and after a little hunt for satellites, it told me where we were. I took it back in the house to write down the numbers, and it tossed up a message "Weak GPS Signal" right on top of the numbers I was trying to copy (I think maybe being inside a house with a steel roof just might have something to do with that...) so I had to go back outside and scribble (barely legibly) the numbers on the little screen.
A hint for GPS makers would be to make the coordinates BIGGER. As in, big enough to see easily. And ensure that the warning of weak signal does not cover them up.
However, it's clearly a tough little critter and I expect to start making more professional-looking reports soon.