Hmm, looks like I'm a bit late to the party. Ahh well, such is life. Still, a few extra things to consider:
Triple Shot Espresso is basically three shots of coffee at once, increasing duration not effect. Given you can craft them up as much as you like, it's just a way to have to worry about drinking coffee less often.
And while they're a little inconvenient to make, Crab Cakes are really good stat food as well. They give a +1 to Speed and a +1 to Defense so you take a bit less damage from every hit, and they last over twice as long as Spicy Eel, making them pretty much a one-shot all day food.
As an alternative, check out Pepper Poppers. You just need to grow some Hot Peppers and combine them with the Cheese you're already producing in substantial quantities. The thing here is that it gives a speed buff, and actually provides more health than cheese does (although less than gold-star cheese), meaning you can just use this as your food to restore health with which also passively refreshes your speed buff.
Just remember that you can only make use of one food based buff and one drink based buff, so if you are using (as an example) pepper poppers to give you a speed boost, you won't get the speed bonus from the Spicy Eel.
Also, you might try the Galaxy Hammer, which should now be found in the Adventurer's Guild shop now that you've obtained a Galaxy Sword. It has higher base damage than the sword, and the right click function is also quite handy.
As far as Rings, when you hit Combat 9, you unlock one of the most useful rings out there, the Iridium Band. It's basically a Glow Ring, a Magnet Ring, and a Ruby Ring all rolled into one!
From there, the Crabshell Ring gives a significant +5 Defense bonus, which can dramatically reduce the amount of damage you are taking over the course of an adventure.
If you don't like nasty debuffs, consider an Immunity Band, which gives +4 Immunity (each point of immunity is a 10% chance you won't be affected by a debuff). With the Cinderclown Shoes, this gives you a 90% chance to just not be affected by any given debuff, and with the Mermaid Shoes, it goes over 100% at the cost of one Defense vs the Cinderclown Shoes. YMMV.
If you can find one, a Soul Sapper ring restores Energy per monster kill, giving you a lot of sustainability. Then again, you're probably more worried about health than energy depleting, so it might be less useful to you.
Finally, Explosive Ammo might be useful to you if you plan on making use of your slingshot. Does much more damage than rocks do, and the blast radius will blow up rocks and downed undead in its area of effect when it goes off just like normal bombs do.
)
