An E blues I've been practising:

| E7  | A7    | E7           | Bm7 E7 |
| A7  | A7'   | E7           | C#7    |
| F#7 | B7b13 | E7 E7' A7 Am | B7     |

A7'   = 002023 (just putting a G on top instead of the E, for variety's sake)
Bm7   = 220202
C#7   = x43404
F#7   = 242322
B7b13 = 224243
E7'   = 02013x (melodically coming down to a D from the E)

Also a nice little slow loop:

 C         C/G       C           G/B Am        Am/E      Am         G/B
 0------0---------0--------0--0----|--------0---------0--------0------
 1-----1---------1--------1---1--3-|-1-----1---------1--------1---1-3-
 -----0---------0--------0-------0-|-2----2---------2--------2----2-0- (repeat)
 ----2---------2--------2----------|-----2---------2--------2---------
 3--3---------3------3--------3--2-|-0--0---------0------0--------0-2-
 ----------3-----------------------|-----------0----------------------
beat:
 +  -      +  -      +  -     +  - | +  -      +  -      +  -     + -