I’ve been giving myself B-12 injections for the past month or so, but it’s a doctor prescription and he gave me the needles. I asked a well known female sprinter about B-12 injections, and she recommended injecting in the shoulder and using diabetic needles. I’ve been injecting in the shoulder, but the doctor gave me intra-muscular needles. So far so good.
Have you tried the Trigger Point foam roller? I’ve been using it of late, and it’s pretty great- it has a piece of PVC pipe inside, so it’s very durable. Angela likes the Travel Roller, which comes with a few balls and a DVD, and may be a bit more compact. She also goes through some uses for it in one of the tempo downloads. You can get light or heavy pressure depending on how you use the roller (single leg, double leg) and you can get into the glutes pretty nicely as well.
If you want to do it DIY el-cheapo, you could get Home Depot to cut you a length of PVC, cut and glue some closed cell foam to it, buy a lacrosse ball, and you could probably git’er done for under $15 bucks.