Baby slings are another lifesaver, in my experience. I could wear one and carry my babies close while preparing meals or doing some quick chores. As for toy recommendations, anything that stimulates the baby's senses is good in the early stages - think rattles with different textures and colors or those that play music. Toys that light up seem to be a win with most babies!
I try not to go overboard with gadgets and toys because they can quickly take over the whole house! But I do appreciate some of the newer, safer options that are more aware of baby's well-being - like organic teething toys or those made from non-toxic materials. You never know what a curious little mouth might swallow!
Besides gadgets, I also swear by old-fashioned remedies for soothing babies - a warm bath or a bit of massage never hurt anyone!