My poor garden - I had some major hurdles to overcome in 2013; the weather cooperated for the most part, especially earlier in the summer - so much so that I was over run with weeds, which loved the nice warm rain and then the heat just as much as the vegetables.
My solution for the weeds is pretty simple - smother them with old carpet or layers of newspaper or cardboard.
Pathways are easy - they can be covered with a bit of sawdust to hold the cardboard in place, and also to make it look prettier.
It's best to get this done before the weeds get too tall - if they're already blooming, that's okay, just bend them over and stomp them down.
Lay down anything that will cut off the light - that will kill off the top growth, and over time - in some cases, two seasons - this will stop the growth of the weeds.
As an added bonus, the sawdust holds some of the moisture in the soil; try it; wherever you have even a thin layer of wood chips or sawdust, you'll have damp soil.
My other big issue in the vegetable garden is a bit more dire; as the soil is beautiful sandy and well drained, it's not just easy for me to dig - the pocket gophers like it too. These pesky little critters will dig extensive tunnels and are extremely hard to eradicate, barring a very determined terrier dog.
My solution to their digging is to make raised beds with chicken wire stapled to the bottom of it. They can dig to their hearts content, leaving enough room for the roots of the plants to survive. In the large beds of Sempervivum hens and chicks that I grow, even with just shallow soil, they are quite happy.
Generally, the little rodents don't eat the top growth, just the roots. If they do cause damage to the plant, do what I do and make a box to cover them with, and lots of chicken wire - these are about the size of a small squirrel, so make sure the holes won't let them get in.
Look carefully at the sides of the bed - the pocket gophers push out the soil from underneath the frame with the chicken wire on it, but the plants are fine. This is only four inches deep, the same depth as the lumber.
Garden bugs can be an issue, sometimes overpopulating a certain plant; don't be too hasty to grab the pesticide though. In most cases, in a while, you'll spot some lady bug larvae, which look like a tiny alligator - and they're almost as ferocious.
If you see an egg cluster like the one on the seed head of the dill below, rest assured that aphids on the plant are doomed. The ladybugs will take care of the problem for you.
Other predators to look for are Green Lacewings, dragonflies and syrphid flies, which are always on the hunt for aphids and other pests.
Bugs always lay lots of eggs - like butterflies. Only a handful of the caterpillars survive to be adults though. In the case of these Mourning Cloak caterpillars, the willows were decimated by about a hundred of them; but disease and predators took their toll; only a very few live to breed.
There is always something; depending on the weather, and the particular season, you'll always need to think outside the box. Be flexible and intuitive in your solutions to issues in your garden; it might not be best to run for the backpack sprayer loaded up with deadly chemicals, or poison gas for any pests.