Without a greenhouse but still want to sow your own seeds this year? This nifty little windowsill propagator is the way to go.
Made from widely recyclable translucent/clear plastic and split into 5 x 4 trays, it's designed to disturb your seedlings as little as possible when you need to check on their growth. Just lift and have a look through the side.
Just because they can be recycled doesn't mean that they're meant for single use. The cells, lid and drip tray should last year after year before you need to actually stick them in the recycling bin.
Go on give it a go, there's nothing better than growing from seed for a gardener.
(Soil/seeds sold separately).