I had an allotment for 5 years, but it was too much on top of a very stressful FT job, a DH who spent 50% of his time overseas (2 weeks home, 2 weeks away), a DD who had been dx'd ADHD/Aspergers and managing the household (au pairs were grand for childcare, but a bit rubbish on housework - DD also went to afterschool club in a crèche most days so it was only really every morning for an hour and about 4 hours (in total not per day) in the afternoons per week that I needed childcare). And it was a 20 minute walk to the plot from the car (which was a 20 minute drive from home), carrying all my tools every time as no sheds were allowed. But it was a lovely way to de-stress and also get a fair amount of our soft fruit and veg needs. So I do miss it.
Nowadays, I have somewhat less stress but no chance of getting back on the list. So I make do with the pocket hankerchief garden an dream of a house with a larger garden.
I do "green fences" - growing peas and mangetout up the fence on either side of the garden (so I can tell the pods apart). I have dwarf French beans on the bathroom windowsill. I have another 2 long pots on the playroom windowsill, that tend to alternate between beans, salads, baby spinach, radishes and spring onions. I do broad beans, courgettes, radishes, baby turnips, spring onions, leeks and lettuces, sometimes even a few brassica plants (usually broccoli or Brussels sprouts), in the roughly 1m2 bed I have. There is a deep square pot that holds a climbing tomato plant, with some salads around the base. And I put 3 bush tomatoes into a hanging basket on the wall - I keep thinking about a 2nd basket as that is great! And I have a few herbs scattered around in pots and between the flowers in the other bed. I don't have any soft fruit at home - no room - but I do have a rhubarb plant from my DGM's garden (which came from her DF's allotment originally).
I actually looked at seeds the other day as I need fresh ones for pretty much everything. I only have about 20 leeks in the ground at the moment, which are doing well. I want to start a couple of broad beans indoors this weekend, and also be ready to put in a handful direct in early February. I also want to try some sprouts this year again for winter veg. And I need to get salads and radishes started soon for interest in my lunches. I may even, depending on work stress mostly, put in a couple of chillis and sweet peppers for the windowledge indoors and perhaps try 1 for outdoors too. (I have grown tomatoes and courgettes from seed often before, but a lot fail and I get timings wrong so I tend now to buy both as plants from the GC - which I don't mind as the results are worth the added expense).