Since I keep one bike at the office and four at home, I know what you're talking about! I always ride my red-white-and-blue Schwinn mountain bike on national holidays, and I use the Bianchi only in fair weather, on good roads, when I do not have to carry anything. Where security may be an issue, I use the Peugeot UO-8, which is by far my least valuable steed.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069