I like growing new potatoes for a treat when we're growing lots of veg, but they're certainly not the most economical thing in the world. Perpetual greens are quite useful (kale/perpetual spinach type things) - even though they're not expensive in the supermarket it's good always having something green to throw into a meal, I found. I will not be swayed from salad and herbs only this year though! Have made a plan with horsey friend to visit her with my mother once the baby arrives and we can take some well rotted compost, so that problem is solved (although it won't be till late april, but I don't think that will matter for the things I'm planning on growing).
Afterthought I understand why you don't want to tell your DH. You might find you feel able too once you're in control of it and it's reducing, but as long as you can manage it single handed, it could be possible to do it alone.
Nerf we were talking about buying a new car yesterday (can't fit three across the back in current one) and we have decided we just can't take the stress of ever getting in debt again once this lot is paid off. We will hire cars if we need a bigger one to visit family, and as soon as debt is paid off will start saving for a new car if we decide that we need one (we are good public transport users, so it may not be a problem, will be interesting to see how we cope). The only debt I ever take on again will be a mortgage.
Interestingly, DH and I both have divorced/remarried parents, and of all of the couples, the only ones enjoying a comfortable retirement are the lowest earners, but the most debt-phobic pair, who paid off their mortgage asap, saved, bought a rental property with an inheritance, paid off the small mortgage on that asap. They don't have a massive income, but their outgoings are tiny as no mortgage and have converted their house to be energy efficient and grow loads of veg. I think there's a lesson there.
Am planning on spending an hour or so this morning seeing how the finances are and balancing the books, will be interesting to see how we're going at not-increasing-the-debt-too-much in my first month of maternity leave!