cartridge cleaner advice

N64ADL

just some quick advice, i bought cartridge cleaner gel and brush back in 2011 and wondered how long cleaning gels usually last??

ifightdragons

Isopropyl 99%, q-tips and plastic eraser (Staedtler). All you should ever need.

Nes Freak

i prefer windex. Isopropyl 91% for some reason doesnt cut it as well for me. but yeah dont bother wasteing your money on "special gels/cleaners" i once bought one that smelled like listerine XD