I use chain wax rather than an oil, the wax when applied to a hot chain (i.e. just after a ride) sets and doesn't fling off, i use wd or cdc to clean my chain and i also spray it on my engine, keeps road grime and rain stain from setting on the alloy/paint.
I also tend to lube regularly, it's cheap, and better to do it more than not enough.
Leave the pressure washer in the shed, they're bad news for bikes, especially road bikes, yep, they're made to be ridden in the rain but a regular hose is fine with a bucket and sponge, decent quality car wash and chamois. As one of the other guys said, air boxes and bearings can get moisture forced in from a pressure washer but worse than that, electrical plugs/wiring can also be affected possibly leaving you stranded somewhere.
Mr Sheen and Windex are probably ok (dishwashing liquid is not! contains caustic soda) but i prefer quality automotive products, meguiars car wash, final inspection, and wax, cleaner wax is excellent, all engineered for paint work, not furniture, just depends on how fussy you want to get i suppose.
good luck, ride safe.
paul.
yep do as paul said and u wont go far except for windex is a no no on anything plastic based as for your seat meguirs vinvy and platic restorer is great and not slippery and cleans the grime of well and as for your chain i wax mine after every ride and there will be lots saying thats bullshit but i never have to adjust my any where near as much about twice a year cheers bazz