I saw on a magazine cover, seeds started in emptied out egg shells
So I have started cutting the tops of my eggs before using them and saving the shells in a egg carton, and will start some seeds this way
Off topic

Back to topic any advice on this use of egg shells for starting seeds
they are larger than the cartons
I live in Ontario in a zone 4-5 so we are a long way to planting, I have an extensive english country garden with foxglove, delphiniums, phlox, rubekia, cone flowers, coral bells, peonies, peoney poppies and tons of shirley poppies and california poppies, and of course the perennial poppies, shasta daisies, pathways of hosta, blue, yellow, green, varigated
monks hood, sedum, bleeding heart (minature) maltese cross, blanket flowers, peacock orchids, mexican shell flowers (in containers)
lots of lilies oriental, (going to try Bobbex this year to keep the deer away)
have tried everything else
Yellow outhouse flowers and snow on the mountain in front of the barn, iris, vinca, cfhinese lanterns (can;t get rid of those suckers) pull them out all year long, , coreopsis and lots more I cannot remember
I also always have a healthy supply of weeds, I grow clematis,
and lots of cucumber vine, ivy , and throw in some annuals which I will try this year to start from seed.
I like lobellia, and cup and saucer vine, sometimes call canturbury bells and passion flowers growing on the gazebo.
I have no idea what seeds I will start but will try something for the veggie garden and annuals for the perennial beds.