Hi, should I be worried about an oil spot under my car in the garage. 2012 Accord with 70k miles. The spot has developed over probably a year or so. It's not leaking anything major but maybe a few drops a week. Is this likely a serious or expensive fix?

If the leak is minor is it ok to just keep checking the oil level weekly and add a bit if it gets low? It may be a month or two before my mechanic can take a look. What about stuff like this?

Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart https://www.amazon.com/dp/B001KXN3YQ/ref=cm_sw_r_cp_apa_1Lq3BbCT0VVME