I know it is beautiful already, but just a subtle..ever so subtle difference to make the IS250 which seems rare enough on the roads..that ever more personalised....
Saving up to go Pro -Lex....hehe
As for exercise and Lex-Fu (lexus Car Wash kung Fu?), weekly washing for the black lexus is essential to rid the dust and keep the waxed look crystal. Sonus or Zymol do decent car wash systems (use just a minimal amount., should last 40-50 washes - about 10-11 months worth of weekly wash!)
Washing by hand with a good fibre mitt, with minimal pressure, one can appreciate the Lexus styling especially from the back to front. To go that extra, checking the tyre threads for shrapnel, agitation of the inner allow rims with a long brush and dressing the tyres gives a total protection on a weekend withotu chores/partying or work!