If you bought 2 packs of TA-102 thick tape -
One 100mm x 20mm strip on each power outlet in use.
Completely surround the exterior of each component’s iec power inlet with 20mm tape. Also cut a 20mm x 35mm piece for each side of the iec power plug. Normally I would wrap these with TA-32 thin tape, but either way this gives a major improvement in sound quality.
for big (vertical) caps, just cover the top of the cap with a square piece. Cutting them into circular pieces would be wasteful if you only have 2 packs. I don’t think fo.Q dulls sound on caps (my opinion, my taste).
For transformer, depending on size, maybe a 75mm square piece. More is better.
If you have a turntable, on the tonearm base near the tonearm and connector. Small rectangle on the tonearm headshell.
10mm strip on each side of the RCA connector banks on all amps, preamps, DACs etc.
Anywhere on crossover boards where it’s safe to place conductive tape.
20mm pieces all around the speaker terminals. If you can attach the thick tape to the speaker cable terminals (both ends), that would be great as well.
Any leftover, try anywhere on any chassis where you suspect vibration could occur.
If you do all that, you probably won’t believe your ears. It would be nice to know if you agree, after you have a listen. I hope you like it, I’m certain you will actually!