I'll admit, I limp in with less than 10bb. However, I will only limp in with hands that I am prepared to go all-in with. So if someone raises me I will go ahead and shove most of the time. This goes against proper strategy, but I believe in the 5-10 range I still have enough bbs to see 2 flops if I need to. So when I hit 10bb, I tighten up my range, limp sometimes and see a flop cheap. If I hit the flop or sense weakness I'll shove on the flop. If I think I'm beat, I still have another chance. 10bb is still enough in a shove that most other players won't call unless they have a super strong hand. By limping and then shoving on the flop I can build up the pot a little more. Once I hit 5bb is where I'm gonna shove anything playable.