There is not much you do with a jack that can't be done with a lever and
fulcrum , and if you really need it ,you can barrow it. I hate barrowing anything.
The floor tile is a great ideal. I can think of a dozen uses. I have used
pieces of tile as spacers and shims many times. Sometimes temporary and others permanent. Cut them to make clamp pads . Use to protect bottom of lockers , set paint
cans on while mixing , use as mixing board for epoxies and fillers, just use your imagination . The absolute best use would be as table top , cabin
top or cockpit
protection when your rebuilding that pump , alternator
, etc. Four of them tape together would make a great work surface.
I'm putting four on my boat now.