assign selected tags of target monitor to client when tagmon is performed (less obtrusive imho)
--- a/dwm.c Wed Jun 24 20:04:18 2009 +0100
+++ b/dwm.c Thu Jun 25 11:10:19 2009 +0100
@@ -1502,6 +1502,7 @@
detach(c);
detachstack(c);
c->mon = m;
+ c->tags = selmon->seltags; /* assign tags of target monitor */
attach(c);
attachstack(c);
m->sel = c;