We got the bay tree shaped up (and a year's supply of leaves are now drying in the spare room), cut down the Cornus stems (I'll use these as pea sticks) and got a couple of Forsythia under control - now there's a shrub that can defend itself. Maybe I sould have saved the thorny cuttings and spread these over where I've sown my peas to deter the mice.
We lightly shaped a Robinia which was getting straggly, shortened a Cotinus or smokebush and left the Callistemon or bottlebrush tree and the Ceanothus to flower before we'll have a go at them.
But it's all a bit daunting. Somehow when the border was in full growth last summer there seemed less to do than now when the die back shows up all the little jobs that need doing - patching the landscape fabric here, weeding there, filling that space in, gravel and mulch here..... Guess I know what one of our jobs next weekend will be.