well, if you have 180R or 270R you can sub, or if 22uF or 33uF or 68uF or 100uF .... if you can't wait. if they are on the way, doesn't matter.
matrix board? great! I only so far use vero, so I can't help.
really, I start from the left, input, work to the right, output. it makes sense to me to have the positive supply rails topp-er, and the grounds bottom-er. most of the time, all this goes out the window, whatever fits where w/ least # of cuts and links. there is 3 ways to work the laying out, pencil and squared paper, the perfboard and a stack of parts poking in, and diylayout creator, seen elswhere hereabouts.
keep in mind the layout of your enclosure, jack placements and controls. try and keep your leads straight up and down, don't stretch electro legs across 6 traks f'instance. sit resistors flat on the board, bend their leads to fit across 4 or 5 holes, keep all yr parts north-south or east-west (no slanty, no 2 leads one hole). or come up with your own layout rules to suit yr mood.
and it is easier to wire a board iff all the off-board connections run from one edge. not often possible, but something to work towards. post your 3rd or 4th try, we'll have a look.
