GOOD: Payday bars, crunchy granola bars, fig newtons, salted mixed nuts, hard boiled eggs (cool weather only).

For relaxed rides, we, DH & I, are also fond of bike picnics with fancy bread, canned oysters, good cheese, fruit, all that. Just don't overpack/eat. There is also something to be said for stopping at small diners/bars/greasy spoons for a burger - or whatever.

BAD: Bananas (how do people gag them down?), chocolate (just not tasty when I'm working), anything fragile, anything expensive.