Hi Spireite
I'm in my first serious year and the best thing I ever did was get a diary out of a shop well known for selling things at £1.
Just today I was wondering whether to sow peas in modules to succeed the last sowing, a quick flick through the diary showed me that it wasn't worth bothering because I wouldn't have the space, given the time it would take them to grow on.
The only thing is, all I've recorded is e.g. "lettuce sown" then "lettuce sown on 22/03/12 are showing" then "potted on said lettuces". I wish i'd included more details like sowing medium, location, whether propagated on the windowsill/greenhouse/fish tank, potting on medium, what pots, trays, containers etc.
Next year i'm going to be even sadder than diarising it - I'm going to make little A6 sowing records and keep them in a folder, noting when the plants get a change in their circumstances and what yields i get. :-[
I'll still keep the diary though. I'd forget to do things otherwise.
Cheers
Gord