Thanks for sharing your ideas Rain and your table is great 
I painted my shed with wilko's answer to cuprinol last summer and it was terrible, 3 coats of undercoat and 4 coats of paint and lots of preperation and it still peeled but I guess you get what you pay for sometimes.
I also bought some really lovely 'garden' paint from another major DIY shop this year and painted my new gate and 3 trellis panels which seemed to take forever (but was very therputic), I followed all the instructions and am really fed up because it seems to be washing off in the rain.
I noticed you mix PVA with paint does this work well?
I love paintig things in the garden it brightens it up on dull days like today and gardengirl you've set me off with the bird table