Kenneth Finnegan shared a tip on using 0603 SMDs on the .1″ perf board:
As a quick little tip, when I’m prototyping circuits on 0.1″ perf board, I like using 0603 surface mount components for all of my passives and LEDs, since they nicely fit between the pads. This way I don’t need to bother with any wiring between LEDs and their resistors, since I can just use three pads in a row to mount the LED and their corresponding current limiting resistor and just need to wire the two ends to where they’re going.
See the full post on his blog.
from Dangerous Prototypes http://bit.ly/2IHD9Hf