I've only been at this about a month. As a premium member you can create pocket queries, they let you search by size, difficulty, terrain, etc. When I started (and still usually) I would select only small, medium, large, virtual, and earthcache. Also a difficulty and terrain less then 2.5. then, particularly since it was winter with a few feet of snow on the ground, I chose Found within the last 7 days. As a beginner this can be handy, you can be pretty much assured that the cache is still there. Also, it might make it easier to spot broken twigs, matted grass etc that could give you additional hints (snow is great for this).